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