{HEAD ~ The middle member} may comprises {TAIL ~ a composite} of alternating layers of wire trusses and polystyrene foam 
comprises
{ HEAD ~ The middle member } may comprises { TAIL ~ a composite } of alternating layers of wire trusses and polystyrene foam
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH