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