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On Mar 21, 7:10*pm, Giles wrote:
You've done a good job of describing the barber chair phenomenon. As you have learned, a dangerous situation exists anytime one is cutting a tree, log, or even a branch that is under tension. Binding the butt of the tree can prevent most barber chair accidents, but just as you wouldn't knowingly place yourself in line with the muzzle of a firearm just because the safety is engaged, you should never place yourself (or any part of your body) in a direct line with the direction of tension. Bob Weinberger - DuPont,WA |
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Giles wrote in
: On Mar 21, 8:02*pm, "dr.narcolepsy" wrote: On Mar 21, 8:45*pm, Bob wrote: On Mar 19, 4:29*am, Giles wrote: On Mar 19, 3:12*am, Bob wrote: Actually the type of accident you describe (here in big timber coun try we call it a barber chair) is *one of the most common causes of d eath or serious injury in timber falling accidents. Never heard the term "barber chair" before in this context. *Easy enough to understand, though. *It's also easy to believe that it ra nks high as a cause of death or injury. *Do you have ready access to an y numbers? *Many years ago when I was involved in logging supervision, I used to receive regular accident reports from Oregon OSHA on serious logging accidents. *Death & serious injury from barber chairs were always hig h on the list. *I imagine OSHA still keeps such statistics. Many (including Birch) are quite prone to splitting as you described sometime during the back cut - especially if they have a heavy lean . I've seen it happen a couple of times myself. *Didn't know that bir ch was a frequent offender. Though many saw hands scoff at the practice as being sissy, the saf est way to fell such trees is to bind the butt (immediately above where the top of the notch cut will be) with heavy duty nylon webbing (ma de to handle the extreme forces involved) before starting any cuts. This, too, is news to me. *I'd appreciate any more inofrmation you could provide as I'll be doing a lot of cutting here in the next few months. I probably should have used the term strapping rather then webbing. The type of nylon web strap that log truck drivers in many areas use to bind down their loads is what is used. Any good saw shop in an area where there is much commercial logging going on could make one up for you in a size to handle the size trees you will be working with. *It should be used on any tree with a very heavy lean (especially hardwoods) or one with a very unbalanced crown (heavy in the direction of fall). The old saying that "There are bold timber fallers and there are old timber fallers, but few are lucky enough to be old bold timber fallers." is quite true. There have been times and arenas in life when I've flirted with the bold thing. *I was lucky. *I try hard not to do that anymore. * Never did it in connection with tree falling. *But, like just about anyon e, I suppose, I've been careless on occasion. *I don't think Karl was particularly bold.....and he was certainly getting old at 69. *He m ay or may not have been careless.....I don't know whether he had ever heard of the practice of binding trees with webbing. At any rate, it now looks as if this "bad luck" may have been preventable. *Casts the whole mess in a different light. Much to think about. Thanks, Bob giles Bob Weinberger * *DuPont, WA Hi, everyone. *Wolfgang - thanks for that story, entertaining and thought provoking, as always. *And thanks, Bob, too, for sharing from your expertise. Please forgive this question - I'm not too embarrassed to say that I don't quite get the mechanics of this accident. google image search of "logging accident barber chair" produced this:http ://www.forestryforum.com/images/YaBBImages/userpics/barberchair.jpg Is the issue that part of the tree from *below* the intended cut gets split along with the main part of the tree and that's what swings up with bad potential results? I can't speak with any authority to what happens generally, but in Karl's case, and as I have seen before, the split occurs (or, starts, anyway) right at the place where the back cut is made. The illustration at the site you pointed us to is a bit misleading in that it doesn't show the notch, which is precisely opposite where the split has occured and where the sawyer has met his doom. Of course, the result shown can also happen without a notch having been cut at all (as shown) but common practice, as far as I know, includes notching on the side toward which the tree is intended to fall. However, this may indeed not be the case where trees lean severely and where they are intended to fall in the direction of the lean. Obviously, cutting opposite this direction will produce the intended result without a notch.....but the possible consequences (with or without the notch, for all I know) are now all too obvious. In any case, the answer to your question would appear to be no.....the split starts at the backcut and moves up through the trunk.....or so it has always been in my admittedly limited experience. Incidentally, I've seen in happen even with small trees and without any significant lean. And, unlike what is shown in the illustration, the busted end does not necessarily always simply lever up. It will often kcik back as well. Imagine the broken end actually moving toward the sawyer so that even if he were standing several feet back from where he is shown in the illustration. Depending on circumstances, he might still be toast. And, of course, it is not just whole standing trees that are dangerous. I narrowly missed being decapitated myself by a four inch cherry branch last spring. The tree was already down......dropped by a much larger oak that took several other trees with it. The cherry branch was obviously under tension.....had a significant bend to it. I misjudged the angle of the bend or the forces at play or one thing or another. I cut it and felt the wind whizzing past my left ear before the import of what had just happened (or not.....depending on point of view.....I'm glad to report that I'm in a position to take the latter) registered in my brain or Becky's; she was about fifteen feet away, waiting to load up the sawn firewood. Any way you look at it, wherever the sound of a chainsaw penetrates (or any other saw) there is danger aplenty. But then, the same can be said for any place that such sounds never reach. giles who has known all his life (on a more or less intellectual level) that one way or another they WILL get you in the end. it's just in the past few decades that a more personal and visceral point of view has come to hold sway. ![]() p.s. Karl died about 2 or 3 a.m. on saturday. WTF does this irrelevant babbling about felling a MF-Tree have to do with FISHING????? I know, It's the 'old woman' in you that just can't resist the opportunity to go on, and on, about a nothing topic. All you need, you Old Bitch, is just the least bit of an chance to start up that super charged motor mouth of yours, and spew out from here to eternity! Babble on you crusty old witch!! |
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On Mar 21, 9:17*pm, ConwayRadis wrote:
Giles wrote : On Mar 21, 8:02*pm, "dr.narcolepsy" wrote: On Mar 21, 8:45*pm, Bob wrote: On Mar 19, 4:29*am, Giles wrote: On Mar 19, 3:12*am, Bob wrote: Actually the type of accident you describe (here in big timber coun try we call it a barber chair) is *one of the most common causes of d eath or serious injury in timber falling accidents. Never heard the term "barber chair" before in this context. *Easy enough to understand, though. *It's also easy to believe that it ra nks high as a cause of death or injury. *Do you have ready access to an y numbers? *Many years ago when I was involved in logging supervision, I used to receive regular accident reports from Oregon OSHA on serious logging accidents. *Death & serious injury from barber chairs were always hig h on the list. *I imagine OSHA still keeps such statistics. Many (including Birch) are quite prone to splitting as you described sometime during the back cut - especially if they have a heavy lean . I've seen it happen a couple of times myself. *Didn't know that bir ch was a frequent offender. Though many saw hands scoff at the practice as being sissy, the saf est way to fell such trees is to bind the butt (immediately above where the top of the notch cut will be) with heavy duty nylon webbing (ma de to handle the extreme forces involved) before starting any cuts. This, too, is news to me. *I'd appreciate any more inofrmation you could provide as I'll be doing a lot of cutting here in the next few months. I probably should have used the term strapping rather then webbing. The type of nylon web strap that log truck drivers in many areas use to bind down their loads is what is used. Any good saw shop in an area where there is much commercial logging going on could make one up for you in a size to handle the size trees you will be working with. *It should be used on any tree with a very heavy lean (especially hardwoods) or one with a very unbalanced crown (heavy in the direction of fall). The old saying that "There are bold timber fallers and there are old timber fallers, but few are lucky enough to be old bold timber fallers." is quite true. There have been times and arenas in life when I've flirted with the bold thing. *I was lucky. *I try hard not to do that anymore. * Never did it in connection with tree falling. *But, like just about anyon e, I suppose, I've been careless on occasion. *I don't think Karl was particularly bold.....and he was certainly getting old at 69. *He m ay or may not have been careless.....I don't know whether he had ever heard of the practice of binding trees with webbing. At any rate, it now looks as if this "bad luck" may have been preventable. *Casts the whole mess in a different light. Much to think about. Thanks, Bob giles Bob Weinberger * *DuPont, WA Hi, everyone. *Wolfgang - thanks for that story, entertaining and thought provoking, as always. *And thanks, Bob, too, for sharing from your expertise. Please forgive this question - I'm not too embarrassed to say that I don't quite get the mechanics of this accident. google image search of "logging accident barber chair" produced this:http ://www.forestryforum.com/images/YaBBImages/userpics/barberchair.jpg Is the issue that part of the tree from *below* the intended cut gets split along with the main part of the tree and that's what swings up with bad potential results? I can't speak with any authority to what happens generally, but in Karl's case, and as I have seen before, the split occurs (or, starts, anyway) right at the place *where the back cut is made. *The illustration at the site you pointed us to is a bit misleading in that it doesn't show the notch, which is precisely opposite where the split has occured and where the sawyer has met his doom. *Of course, the result shown can also happen without a notch having been cut at all (as shown) but common practice, as far as I know, includes notching on the side toward which the tree is intended to fall. *However, this may indeed not be the case where trees lean severely and where they are intended to fall in the direction of the lean. *Obviously, cutting opposite this direction will produce the intended result without a notch.....but the possible consequences (with or without the notch, for all I know) are now all too obvious. In any case, the answer to your question would appear to be no.....the split starts at the backcut and moves up through the trunk.....or so it has always been in my admittedly limited experience. Incidentally, I've seen in happen even with small trees and without any significant lean. *And, unlike what is shown in the illustration, the busted end does not necessarily always simply lever up. *It will often kcik back as well. *Imagine the broken end actually moving toward the sawyer so that even if he were standing several feet back from where he is shown in the illustration. *Depending on circumstances, he might still be toast. And, of course, it is not just whole standing trees that are dangerous. *I narrowly missed being decapitated myself by a four inch cherry branch last spring. *The tree was already down......dropped by a much larger oak that took several other trees with it. *The cherry branch was obviously under tension.....had a significant bend to it. I misjudged the angle of the bend or the forces at play or one thing or another. *I cut it and felt the wind whizzing past my left ear before the import of what had just happened (or not.....depending on point of view.....I'm glad to report that I'm in a position to take the latter) registered in my brain or Becky's; she was about fifteen feet away, waiting to load up the sawn firewood. Any way you look at it, wherever the sound of a chainsaw penetrates (or any other saw) there is danger aplenty. But then, the same can be said for any place that such sounds never reach. giles who has known all his life (on a more or less intellectual level) that one way or another they WILL get you in the end. *it's just in the past few decades that a more personal and visceral point of view has come to hold sway. * * * * ![]() p.s. *Karl died about 2 or 3 a.m. on saturday. WTF *does this irrelevant babbling about felling a MF-Tree have to do with FISHING????? I know, It's the 'old woman' in you that just can't resist the opportunity to go on, and on, about a nothing topic. *All you need, you Old Bitch, is just the least bit of an chance to start up that super charged motor mouth of yours, and spew out from here to eternity! Babble on you crusty old witch!! And just what does your complaining about the thread have to do with FISHING??? |
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On Mar 21, 11:17*pm, ConwayRadis wrote:
WTF *does this irrelevant babbling about felling a MF-Tree have to do with FISHING????? I know, It's the 'old woman' in you that just can't resist the opportunity to go on, and on, about a nothing topic. *All you need, you Old Bitch, is just the least bit of an chance to start up that super charged motor mouth of yours, and spew out from here to eternity! Babble on you crusty old witch!! Some interesting questions and observations there. And I'm sure that we could collectively address them satisfactorily if you would give us an idea of why it hurts so much to be you. I mean, we already know that it's not simply rank stupidity. We see enough of that here just about every day to know that its possessors, though intellectually and morally crippled, nevertheless manage to get through most days without doing themselves any obvious debilitating damage. Not to say that they don't suffer from obvious debilitating damage.....but we rarely see any incremental increase in that damage on any given day. Well, o.k., it isn't exactly "rarely," but you know what I mean. So, what is it? Do you have disgusting habits that you simply cannot give up despite knowing that the world disapproves? Do you have thoughts and desires that would cause family and neighbors to stone you to death if you ever gave vent to them? Is it guilt over heinous acts committed in childhood.....or well into whatever semblance of adulthood an overly generous observer might be willing to ascribe to you? Are you utterly incapable of face to face encounters with human beings? Are you paralyzed by fear at the mere thought of engaging in something as portentous as idle chatter? Are you possessed of a visage that sends women and small children shrieking into the cold dark night? Do you eat boogers? Do you carry your bottle-cap collection in your anus? Give us just a few little hints. We'll see what we can do for you. g. |
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Giles wrote in
: On Mar 21, 11:17*pm, ConwayRadis wrote: WTF *does this irrelevant babbling about felling a MF-Tree have to do w ith FISHING????? I know, It's the 'old woman' in you that just can't resist the opportunit y to go on, and on, about a nothing topic. *All you need, you Old Bitch, is just the least bit of an chance to start up that super charged motor mout h of yours, and spew out from here to eternity! Babble on you crusty old witch!! Some interesting questions and observations there. And I'm sure that we could collectively address them satisfactorily if you would give us an idea of why it hurts so much to be you. I mean, we already know that it's not simply rank stupidity. We see enough of that here just about every day to know that its possessors, though intellectually and morally crippled, nevertheless manage to get through most days without doing themselves any obvious debilitating damage. Not to say that they don't suffer from obvious debilitating damage.....but we rarely see any incremental increase in that damage on any given day. Well, o.k., it isn't exactly "rarely," but you know what I mean. So, what is it? Do you have disgusting habits that you simply cannot give up despite knowing that the world disapproves? Do you have thoughts and desires that would cause family and neighbors to stone you to death if you ever gave vent to them? Is it guilt over heinous acts committed in childhood.....or well into whatever semblance of adulthood an overly generous observer might be willing to ascribe to you? Are you utterly incapable of face to face encounters with human beings? Are you paralyzed by fear at the mere thought of engaging in something as portentous as idle chatter? Are you possessed of a visage that sends women and small children shrieking into the cold dark night? Do you eat boogers? Do you carry your bottle-cap collection in your anus? Give us just a few little hints. We'll see what we can do for you. g. GOOD GOD!!!! Yet another babbling crusty old bitch that goes on, and on, and on about irrelevent BS that has nothing to do with FISHING!!!!! Babble on senile old woman! |
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On Mar 22, 7:37*pm, ConwayRadis wrote:
Giles wrote : On Mar 21, 11:17*pm, ConwayRadis wrote: GOOD GOD!!!! Yet another babbling crusty old bitch that goes on, and on, and on about irrelevent BS that has nothing to do with FISHING!!!!! Babble on senile old woman! Any rational person would find it more than a little ironic that you, who has not contributed one post about fishing (at least under your current nom de plume), complains about posts that are not about fishing. |
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On Mar 22, 9:37*pm, ConwayRadis wrote:
Giles wrote : On Mar 21, 11:17*pm, ConwayRadis wrote: WTF *does this irrelevant babbling about felling a MF-Tree have to do w ith FISHING????? I know, It's the 'old woman' in you that just can't resist the opportunit y to go on, and on, about a nothing topic. *All you need, you Old Bitch, is just the least bit of an chance to start up that super charged motor mout h of yours, and spew out from here to eternity! Babble on you crusty old witch!! Some interesting questions and observations there. *And I'm sure that we could collectively address them satisfactorily if you would give us an idea of why it hurts so much to be you. *I mean, we already know that it's not simply rank stupidity. *We see enough of that here just about every day to know that its possessors, though intellectually and morally crippled, nevertheless manage to get through most days without doing themselves any obvious debilitating damage. *Not to say that they don't suffer from obvious debilitating damage.....but we rarely see any incremental increase in that damage on any given day. *Well, o.k., it isn't exactly "rarely," but you know what I mean. So, what is it? *Do you have disgusting habits that you simply cannot give up despite knowing that the world disapproves? *Do you have thoughts and desires that would cause family and neighbors to stone you to death if you ever gave vent to them? *Is it guilt over heinous acts committed in childhood.....or well into whatever semblance of adulthood an overly generous observer might be willing to ascribe to you? *Are you utterly incapable of face to face encounters with human beings? *Are you paralyzed by fear at the mere thought of engaging in something as portentous as idle chatter? *Are you possessed of a visage that sends women and small children shrieking into the cold dark night? *Do you eat boogers? *Do you carry your bottle-cap collection in your anus? Give us just a few little hints. *We'll see what we can do for you. g. GOOD GOD!!!! Yet another babbling crusty old bitch that goes on, and on, and on about irrelevent BS that has nothing to do with FISHING!!!!! Another? Hm..... Exactly how many of us am I? Not that it matters much in terms of overall content, but we like to keep an accurate score. Babble on senile old woman! Oh.....whew!....for a moment there we thought you wanted us to cease. Well then.....um.....let's see now.....oh yes, I believe we were discussing your pain. You have doubtless wondered from time to time as to its ultimate origin. Invoking he widely useful paradigm of the path of least resistance (or Occam's razor, if you prefer) I'd suggest that you consider Karma, which is to say that you just plain deserve it. In any case, there's nothing you can do about. It's going to be with you for as long as you live. Well, actually, that observation DOES suggest a simple, foolproof and permanent remedy. Good luck! ![]() g. |
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On Mar 22, 9:02*am, "dr.narcolepsy" wrote:
On Mar 21, 8:45*pm, Bob wrote: On Mar 19, 4:29*am, Giles wrote: On Mar 19, 3:12*am, Bob wrote: Actually the type of accident you describe (here in big timber country we call it a barber chair) is *one of the most common causes of death or serious injury in timber falling accidents. Never heard the term "barber chair" before in this context. *Easy enough to understand, though. *It's also easy to believe that it ranks high as a cause of death or injury. *Do you have ready access to any numbers? *Many years ago when I was involved in logging supervision, I used to receive regular accident reports from Oregon OSHA on serious logging accidents. *Death & serious injury from barber chairs were always high on the list. *I imagine OSHA still keeps such statistics. Many (including Birch) are quite prone to splitting as you described sometime during the back cut - especially if they have a heavy lean.. I've seen it happen a couple of times myself. *Didn't know that birch was a frequent offender. Though many saw hands scoff at the practice as being sissy, the safest way to fell such trees is to bind the butt (immediately above where the top of the notch cut will be) with heavy duty nylon webbing (made to handle the extreme forces involved) before starting any cuts. This, too, is news to me. *I'd appreciate any more inofrmation you could provide as I'll be doing a lot of cutting here in the next few months. I probably should have used the term strapping rather then webbing. The type of nylon web strap that log truck drivers in many areas use to bind down their loads is what is used. Any good saw shop in an area where there is much commercial logging going on could make one up for you in a size to handle the size trees you will be working with. *It should be used on any tree with a very heavy lean (especially hardwoods) or one with a very unbalanced crown (heavy in the direction of fall). The old saying that "There are bold timber fallers and there are old timber fallers, but few are lucky enough to be old bold timber fallers." is quite true. There have been times and arenas in life when I've flirted with the bold thing. *I was lucky. *I try hard not to do that anymore. *Never did it in connection with tree falling. *But, like just about anyone, I suppose, I've been careless on occasion. *I don't think Karl was particularly bold.....and he was certainly getting old at 69. *He may or may not have been careless.....I don't know whether he had ever heard of the practice of binding trees with webbing. At any rate, it now looks as if this "bad luck" may have been preventable. *Casts the whole mess in a different light. Much to think about. Thanks, Bob giles Bob Weinberger * *DuPont, WA Hi, everyone. *Wolfgang - thanks for that story, entertaining and thought provoking, as always. *And thanks, Bob, too, for sharing from your expertise. Please forgive this question - I'm not too embarrassed to say that I don't quite get the mechanics of this accident. google image search of "logging accident barber chair" produced this:http://www.forestryforum.com/images/...arberchair.jpg Is the issue that part of the tree from *below* the intended cut gets split along with the main part of the tree and that's what swings up with bad potential results? There's also this youTube movie http://www.youtube.com/watch?v=2YAf6...eature=related You can see the other problem with a barber chair (other than the potential of getting hammered by the snapping butt); you lose control of where the tree falls. It can be hard to get out of the way of a 70 foot tree unless you can run 70 feet in under a second. |
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On Mar 23, 9:07*am, Myron Buck wrote:
On Mar 22, 9:02*am, "dr.narcolepsy" wrote: On Mar 21, 8:45*pm, Bob wrote: On Mar 19, 4:29*am, Giles wrote: On Mar 19, 3:12*am, Bob wrote: Actually the type of accident you describe (here in big timber country we call it a barber chair) is *one of the most common causes of death or serious injury in timber falling accidents. Never heard the term "barber chair" before in this context. *Easy enough to understand, though. *It's also easy to believe that it ranks high as a cause of death or injury. *Do you have ready access to any numbers? *Many years ago when I was involved in logging supervision, I used to receive regular accident reports from Oregon OSHA on serious logging accidents. *Death & serious injury from barber chairs were always high on the list. *I imagine OSHA still keeps such statistics. Many (including Birch) are quite prone to splitting as you described sometime during the back cut - especially if they have a heavy lean. I've seen it happen a couple of times myself. *Didn't know that birch was a frequent offender. Though many saw hands scoff at the practice as being sissy, the safest way to fell such trees is to bind the butt (immediately above where the top of the notch cut will be) with heavy duty nylon webbing (made to handle the extreme forces involved) before starting any cuts. This, too, is news to me. *I'd appreciate any more inofrmation you could provide as I'll be doing a lot of cutting here in the next few months. I probably should have used the term strapping rather then webbing. The type of nylon web strap that log truck drivers in many areas use to bind down their loads is what is used. Any good saw shop in an area where there is much commercial logging going on could make one up for you in a size to handle the size trees you will be working with. *It should be used on any tree with a very heavy lean (especially hardwoods) or one with a very unbalanced crown (heavy in the direction of fall). The old saying that "There are bold timber fallers and there are old timber fallers, but few are lucky enough to be old bold timber fallers." is quite true. There have been times and arenas in life when I've flirted with the bold thing. *I was lucky. *I try hard not to do that anymore. *Never did it in connection with tree falling. *But, like just about anyone, I suppose, I've been careless on occasion. *I don't think Karl was particularly bold.....and he was certainly getting old at 69. *He may or may not have been careless.....I don't know whether he had ever heard of the practice of binding trees with webbing. At any rate, it now looks as if this "bad luck" may have been preventable. *Casts the whole mess in a different light. Much to think about. Thanks, Bob giles Bob Weinberger * *DuPont, WA Hi, everyone. *Wolfgang - thanks for that story, entertaining and thought provoking, as always. *And thanks, Bob, too, for sharing from your expertise. Please forgive this question - I'm not too embarrassed to say that I don't quite get the mechanics of this accident. google image search of "logging accident barber chair" produced this:http://www.forestryforum.com/images/...arberchair.jpg Is the issue that part of the tree from *below* the intended cut gets split along with the main part of the tree and that's what swings up with bad potential results? There's also this youTube moviehttp://www.youtube.com/watch?v=2YAf61zz5VU&feature=related You can see the other problem with a barber chair (other than the potential of getting hammered by the snapping butt); you lose control of where the tree falls. It can be hard to get out of the way of a 70 foot tree unless you can run 70 feet in under a second.- Hide quoted text - - Show quoted text - Well, I was once around munitions that were trying to cook off (catch fire). Found out how incredibly fast a person can run over broken ground. Don't really remember running, I do remember looking back and noticing how far away the fire had gotten. So, 70' in a second... yeah, got it covered. Frank Reid |
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On Mar 23, 1:22*pm, Frank Reid © 2010 wrote:
.....70' in a second...yeah, got it covered. Frank Reid Um.....having read numerous accounts of (as well as personally witnessing) events in which speeds of nearly 7 feet per second were called for (and even accomplished.....occasionally) one is tempted to ask, yeah, but what about collateral damage? ![]() giles who, in rare moments of wakefulness, has seen our esteemed colleague sustain significant damage from projectiles moving at speeds nearing the plate tectonical.. |
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