When FET 108 conducts, {HEAD ~ line} 114 which connects to the gate input of FET 116 connects to {TAIL ~ ground} 112 
connects to
When FET 108 conducts , { HEAD ~ line } 114 which connects to the gate input of FET 116 connects to { TAIL ~ ground } 112
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH