{HEAD ~ A jewelry string} is looped around the pins and clamped in {TAIL ~ position} by the clamps 
{ HEAD ~ A jewelry string } is looped around the pins and clamped in { TAIL ~ position } by the clamps
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH