{HEAD ~ The hopper} has {TAIL ~ angled sidewalls} 134 which each taper to the narrow backfill sleeve width 126 
has
{ HEAD ~ The hopper } has { TAIL ~ angled sidewalls } 134 which each taper to the narrow backfill sleeve width 126
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH