Further included in the apparatus is {TAIL ~ a vacuum transfer chamber} connecting {HEAD ~ the first and second chambers} 
Further included in the apparatus is { TAIL ~ a vacuum transfer chamber } connecting { HEAD ~ the first and second chambers }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD