{HEAD ~ The purpose} of this indexing and registration is to permit {TAIL ~ retrieval} of a particular waste container and its contents for subsequent utilization at one or more industrial plants of the type schematically illustrated at 44, 46 and 48 in FIG 1 of the drawings 
is to permit
{ HEAD ~ The purpose } of this indexing and registration is to permit { TAIL ~ retrieval } of a particular waste container and its contents for subsequent utilization at one or more industrial plants of the type schematically illustrated at 44 , 46 and 48 in FIG 1 of the drawings
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH