A continuous paper web is provided from {HEAD ~ a source} that is the first component of {TAIL ~ such a system} 
A continuous paper web is provided from { HEAD ~ a source } that is the first component of { TAIL ~ such a system }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL