Attached to {HEAD ~ the second printed circuit board} is {TAIL ~ the female portion} of a zero insertion force connector 
Attached to { HEAD ~ the second printed circuit board } is { TAIL ~ the female portion } of a zero insertion force connector
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH