{HEAD ~ The phase generation circuitry} may include {TAIL ~ a plurality} of controllable delay stages arranged in series and phase detector circuitry 
include
{ HEAD ~ The phase generation circuitry } may include { TAIL ~ a plurality } of controllable delay stages arranged in series and phase detector circuitry
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH