After dispensing, {HEAD ~ the screw cap} is replaced on {TAIL ~ the spout} and the carton stored until the next dispensing operation 
After dispensing , { HEAD ~ the screw cap } is replaced on { TAIL ~ the spout } and the carton stored until the next dispensing operation
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH