{HEAD ~ A first dedicated module} of the plurality of {TAIL ~ dedicated modules} receives the data portion based on the content of data portion 
{ HEAD ~ A first dedicated module } of the plurality of { TAIL ~ dedicated modules } receives the data portion based on the content of data portion
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH