The present invention is generally directed to the field of document handling and processing technology and, in particular, to improvements relating to {HEAD ~ the accumulation} of {TAIL ~ material units} 
The present invention is generally directed to the field of document handling and processing technology and , in particular , to improvements relating to { HEAD ~ the accumulation } of { TAIL ~ material units }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL