{HEAD ~ The flip flop} provides {TAIL ~ an output} that is only dependent on the very fast fall times of the outputs of the basic level shifter 
provides
{ HEAD ~ The flip flop } provides { TAIL ~ an output } that is only dependent on the very fast fall times of the outputs of the basic level shifter
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH