Both the article collecting device and {HEAD ~ secondary conduit member} communicate with {TAIL ~ the principal conduit member} to collect a quantity of articles therein 
Both the article collecting device and { HEAD ~ secondary conduit member } communicate with { TAIL ~ the principal conduit member } to collect a quantity of articles therein
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH