bending said inner fibers with {TAIL ~ a curvature} determined by {HEAD ~ said rear tray}; and 
bending said inner fibers with { TAIL ~ a curvature } determined by { HEAD ~ said rear tray } ; and
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH