{HEAD ~ The mechanism} has {TAIL ~ a cord} shaped or tape shaped stopper, and a support unit 
has
{ HEAD ~ The mechanism } has { TAIL ~ a cord } shaped or tape shaped stopper , and a support unit
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH