{TAIL ~ The valve stem} has {HEAD ~ a first end}, a second end and a bore integrated within 
{ TAIL ~ The valve stem } has { HEAD ~ a first end } , a second end and a bore integrated within
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH