The loop with its slings or bights is made simultaneously with {HEAD ~ the formation} of {TAIL ~ the anchoring winding} 
of
The loop with its slings or bights is made simultaneously with { HEAD ~ the formation } of { TAIL ~ the anchoring winding }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL