to transmit the result to one of {HEAD ~ the plurality} of {TAIL ~ image processing units}; and 
of
to transmit the result to one of { HEAD ~ the plurality } of { TAIL ~ image processing units } ; and
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH