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