An input is detected corresponding to a users selection of one of {HEAD ~ the plurality} of {TAIL ~ entries} 
of
An input is detected corresponding to a users selection of one of { HEAD ~ the plurality } of { TAIL ~ entries }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL