logging the determination whether {HEAD ~ the distributor} is utilizing {TAIL ~ the second file sharing protocol}; and 
is utilizing
logging the determination whether { HEAD ~ the distributor } is utilizing { TAIL ~ the second file sharing protocol } ; and
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH