{HEAD ~ One aspect} of the invention involves {TAIL ~ a method} for defining circuit operations using a circuit operation tool 
involves
{ HEAD ~ One aspect } of the invention involves { TAIL ~ a method } for defining circuit operations using a circuit operation tool
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH