| http://www.w3.org/ns/prov#value | - Due to the more recent awareness of the tremendous environmental impact of using paper, paperboard, plastic, polystyrene, glass, and metals for a variety of single-use, mainly disposable, articles such as containers and other packaging materials (not to mention the ever mounting political pressures), there has been an acute need (long since recognized by those skilled in the art) to find environme
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