{TAIL ~ The system port} includes {HEAD ~ a valve stem} having a first end, a second end, and a bore integrated within 
{ TAIL ~ The system port } includes { HEAD ~ a valve stem } having 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 OTH OTH OTH OTH OTH