Two gas props connect {HEAD ~ an inside surface} of the door to {TAIL ~ the opposing sides} of the rear opening 
to
Two gas props connect { HEAD ~ an inside surface } of the door to { TAIL ~ the opposing sides } of the rear opening
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH