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