The side panels 218 and {HEAD ~ the horizontally disposed panel} 222 may comprise {TAIL ~ multiple component parts} which are reinforced by connectors 223 
comprise
The side panels 218 and { HEAD ~ the horizontally disposed panel } 222 may comprise { TAIL ~ multiple component parts } which are reinforced by connectors 223
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH