| http://www.w3.org/ns/prov#value | - (xv) Purchases by libraries or for libraries of books and periodicals; processed film, video cassette tapes, filmstrips and slides; recorded audio tapes, cassettes and diskettes; and any such items as would be used for teaching, research or other information distribution; however, equipment such as projectors, recorders, audio or video equipment, and monitor televisions are not exempt under this p
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