Block 38 is {HEAD ~ a decision block} that represents {TAIL ~ the computer} 10 determining whether the user has entered an UNLINK keyword command to disable the invention 
Block 38 is { HEAD ~ a decision block } that represents { TAIL ~ the computer } 10 determining whether the user has entered an UNLINK keyword command to disable the invention
OTH OTH OTH 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 OTH OTH OTH OTH