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