{HEAD ~ a plunger assembly} comprising a plunger member and {TAIL ~ a plunger plate} slidably disposed within said barrel assembly 
comprising
{ HEAD ~ a plunger assembly } comprising a plunger member and { TAIL ~ a plunger plate } slidably disposed within said barrel assembly
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH