Upon removal of lateral forces, {HEAD ~ the temple} automatically returns to {TAIL ~ its unbiased position} 
automatically returns to
Upon removal of lateral forces , { HEAD ~ the temple } automatically returns to { TAIL ~ its unbiased position }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL