Leg members 474 and 476 form substantially parallel planes on {HEAD ~ either end} of {TAIL ~ hook anchor} 464 
of
Leg members 474 and 476 form substantially parallel planes on { HEAD ~ either end } of { TAIL ~ hook anchor } 464
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH