{HEAD ~ The method} 1, wherein attaching the truncated cone to the pipe further comprising inserting {TAIL ~ the truncated cone} into the pipe 
comprising inserting
{ HEAD ~ The method } 1 , wherein attaching the truncated cone to the pipe further comprising inserting { TAIL ~ the truncated cone } into the pipe
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH