{HEAD ~ A pressure supply conduit} is in {TAIL ~ communication} with the dispensing conduits and both a first reservoir containing the first component, and a second reservoir containing the second component 
{ HEAD ~ A pressure supply conduit } is in { TAIL ~ communication } with the dispensing conduits and both a first reservoir containing the first component , and a second reservoir containing the second component
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH