{HEAD ~ The core} should have {TAIL ~ a diameter} of 1.500 inches or less and an intermediate layer having a thickness of 0.090 inches or greater 
{ HEAD ~ The core } should have { TAIL ~ a diameter } of 1.500 inches or less and an intermediate layer having a thickness of 0.090 inches or greater
HEAD HEAD HEAD HEAD HEAD HEAD 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