A rod support member is coupled to the base of the rod in a manner to permit the rod to {HEAD ~ pivot} about {TAIL ~ its base} 
about
A rod support member is coupled to the base of the rod in a manner to permit the rod to { HEAD ~ pivot } about { TAIL ~ its base }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL