{HEAD ~ The cap} 44 includes {TAIL ~ a curved top portion} 48 and a frustoconical wall portion 50 which terminates in an opening 52 centered on the axis 41 
includes
{ HEAD ~ The cap } 44 includes { TAIL ~ a curved top portion } 48 and a frustoconical wall portion 50 which terminates in an opening 52 centered on the axis 41
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH