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