{HEAD ~ The diameter} of surface 31 is slightly larger than {TAIL ~ the distance} between teeth 27 and 28 
is slightly larger than
{ HEAD ~ The diameter } of surface 31 is slightly larger than { TAIL ~ the distance } between teeth 27 and 28
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH