{TAIL ~ A supply} of {HEAD ~ material} connected to the deposition means preferrably provides material to the deposition means 
{ TAIL ~ A supply } of { HEAD ~ material } connected to the deposition means preferrably provides material to the deposition means
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH