{TAIL ~ The sheet} 24 may either be {HEAD ~ a plain thermoplastic material} or a thermoplastic material reinforced with fibers 
{ TAIL ~ The sheet } 24 may either be { HEAD ~ a plain thermoplastic material } or a thermoplastic material reinforced with fibers
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH