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