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