{HEAD ~ The plug} has a plug body with an outer sealing member, {TAIL ~ a tower}, and an inner sealing member 
has
{ HEAD ~ The plug } has a plug body with an outer sealing member , { TAIL ~ a tower } , and an inner sealing member
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH