{HEAD ~ A predetermined length} of fabric material is then positioned to {TAIL ~ the frame} to overly the retention groove of the side members 
is positioned to
{ HEAD ~ A predetermined length } of fabric material is then positioned to { TAIL ~ the frame } to overly the retention groove of the side members
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH