FIG 5 illustrates {HEAD ~ the top} of {TAIL ~ a transfer structure} 80 which includes eight pipes 82 
FIG 5 illustrates { HEAD ~ the top } of { TAIL ~ a transfer structure } 80 which includes eight pipes 82
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH