repeating the sequence of steps through with {TAIL ~ respect} to {HEAD ~ subsequent substrate elements} in the series 
repeating the sequence of steps through with { TAIL ~ respect } to { HEAD ~ subsequent substrate elements } in the series
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH