In this embodiment, a sequence of runs of insulating glass components to be produced for assembly into {TAIL ~ insulating glass units} at {HEAD ~ an assembly station} is created 
In this embodiment , a sequence of runs of insulating glass components to be produced for assembly into { TAIL ~ insulating glass units } at { HEAD ~ an assembly station } is created
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH