{HEAD ~ a rod} having {TAIL ~ one end} loosely connected with said flange and movable therein, 
having
{ HEAD ~ a rod } having { TAIL ~ one end } loosely connected with said flange and movable therein ,
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH