The inwardly facing surface comprises {HEAD ~ the means} for simultaneously drawing {TAIL ~ the plurality} of sleeves through the duct 
for simultaneously drawing
The inwardly facing surface comprises { HEAD ~ the means } for simultaneously drawing { TAIL ~ the plurality } of sleeves through the duct
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH