{HEAD ~ a second connector part} mounted to said second body and having therein {TAIL ~ first and second contact pins} which serve as said first and second input parts 
having
{ HEAD ~ a second connector part } mounted to said second body and having therein { TAIL ~ first and second contact pins } which serve as said first and second input parts
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH