{HEAD ~ The spacer means} is secured to the lamp member and is in {TAIL ~ operative contact} with the cover 
is in
{ HEAD ~ The spacer means } is secured to the lamp member and is in { TAIL ~ operative contact } with the cover
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH