The two end plates 514 {HEAD ~ each} include {TAIL ~ an opening} 518 into the passage 516 
include
The two end plates 514 { HEAD ~ each } include { TAIL ~ an opening } 518 into the passage 516
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH