The method creates a sequence of runs of insulating glass units to be produced for assembly to window or door sash and frames at {HEAD ~ a plurality} of {TAIL ~ glazing lines} 
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The method creates a sequence of runs of insulating glass units to be produced for assembly to window or door sash and frames at { HEAD ~ a plurality } of { TAIL ~ glazing lines }
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 HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL