{HEAD ~ The circuits} enabled for {TAIL ~ the operation} are also limited, and the number of types of clocks and the like required for the operation can be largely reduced 
{ HEAD ~ The circuits } enabled for { TAIL ~ the operation } are also limited , and the number of types of clocks and the like required for the operation can be largely reduced
HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH