In operation, the consumer unscrews the cap from the spout, ruptures the sealing membrane 44 at the top of {TAIL ~ the spout} and pours {HEAD ~ the desired amount} of liquid out of the carton 
In operation , the consumer unscrews the cap from the spout , ruptures the sealing membrane 44 at the top of { TAIL ~ the spout } and pours { HEAD ~ the desired amount } of liquid out of the carton
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH