{HEAD ~ The cross section} and luster of {TAIL ~ the fibers} or the filament may be varied, e.g., as dictated by requirements of the intended end use 
of
{ HEAD ~ The cross section } and luster of { TAIL ~ the fibers } or the filament may be varied , e.g. , as dictated by requirements of the intended end use
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH