The synthetic fibers thus function as a reinforcing web or backbone to maintain {HEAD ~ some mechanical integrity} and strength of {TAIL ~ the paper} 
of
The synthetic fibers thus function as a reinforcing web or backbone to maintain { HEAD ~ some mechanical integrity } and strength of { TAIL ~ the paper }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL