{HEAD ~ The portion} of the clock tree is coupled to receive the control signal for collectively conditionally gating {TAIL ~ the plurality} of clocks 
{ HEAD ~ The portion } of the clock tree is coupled to receive the control signal for collectively conditionally gating { TAIL ~ the plurality } of clocks
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH