There is provided, according to another aspect of the invention, a method of logging a tree having {HEAD ~ a trunk} with a top and {TAIL ~ bottom} 
with
There is provided , according to another aspect of the invention , a method of logging a tree having { HEAD ~ a trunk } with a top and { TAIL ~ bottom }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL