The deck assembly comprises {HEAD ~ a deck portion} formed of {TAIL ~ a first material} and a sub structure formed of a second material 
The deck assembly comprises { HEAD ~ a deck portion } formed of { TAIL ~ a first material } and a sub structure formed of a second material
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH