{TAIL ~ Base} 10 is connected to one part 12a of {HEAD ~ a base} joint 12 
{ TAIL ~ Base } 10 is connected to one part 12a of { HEAD ~ a base } joint 12
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH