{TAIL ~ The finishing} of the shape of {HEAD ~ the supporting body} is simple and has a lower cost 
{ TAIL ~ The finishing } of the shape of { HEAD ~ the supporting body } is simple and has a lower cost
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH