calculating {HEAD ~ a utilization} for {TAIL ~ the selected product} based on product properties specified by the user 
for
calculating { HEAD ~ a utilization } for { TAIL ~ the selected product } based on product properties specified by the user
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH