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