{TAIL ~ A cap} is provided to cover {HEAD ~ the needle} after the syringe has been used 
{ TAIL ~ A cap } is provided to cover { HEAD ~ the needle } after the syringe has been used
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH