More specifically, {HEAD ~ the present invention} relates to {TAIL ~ rear doors} for a cap or shell mounted over a bed for a pickup truck 
More specifically , { HEAD ~ the present invention } relates to { TAIL ~ rear doors } for a cap or shell mounted over a bed for a pickup truck
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH