{HEAD ~ a reset element} that is turned on or off by {TAIL ~ a reset signal} and that resets the input node in an on state, 
{ HEAD ~ a reset element } that is turned on or off by { TAIL ~ a reset signal } and that resets the input node in an on state ,
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH