c) grasping the working end of {TAIL ~ the flexible tube} with {HEAD ~ the first and second jaws} 
c ) grasping the working end of { TAIL ~ the flexible tube } with { HEAD ~ the first and second jaws }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD