Attached to the opposite side of {HEAD ~ the base} 42 is {TAIL ~ a first printed circuit card} 50 
Attached to the opposite side of { HEAD ~ the base } 42 is { TAIL ~ a first printed circuit card } 50
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH