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