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