{HEAD ~ A second receiving unit} of the plurality of receiving units forms {TAIL ~ a selection} for the content and communicating the selection to the first receiving unit 
forms
{ HEAD ~ A second receiving unit } of the plurality of receiving units forms { TAIL ~ a selection } for the content and communicating the selection to the first receiving unit
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH