{HEAD ~ Each panel} of {TAIL ~ flexible material} is heavier or more wind resistant than the one above it, thus requiring a higher wind necessary to unfurl it or extend it horizontally 
{ HEAD ~ Each panel } of { TAIL ~ flexible material } is heavier or more wind resistant than the one above it , thus requiring a higher wind necessary to unfurl it or extend it horizontally
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH