This forces the container downwardly against a forming surface having {TAIL ~ a configuration} corresponding to a desired configuration of the pieces of {HEAD ~ material} 
This forces the container downwardly against a forming surface having { TAIL ~ a configuration } corresponding to a desired configuration of the pieces of { HEAD ~ material }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD