{TAIL ~ an elongate lever member} for manipulating said control line and having {HEAD ~ a pivoting extremity} and a free extremity, 
{ TAIL ~ an elongate lever member } for manipulating said control line and having { HEAD ~ a pivoting extremity } and a free extremity ,
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH