d) using the endoscope to bend the working end of {HEAD ~ the flexible tube} to move {TAIL ~ the second jaw} against patient tissue of the esophagus or the stomach; and 
to move
d ) using the endoscope to bend the working end of { HEAD ~ the flexible tube } to move { TAIL ~ the second jaw } against patient tissue of the esophagus or the stomach ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH