| http://www.w3.org/ns/prov#value | - Tangible objects used for letters do not include (i) objects the material or shape and design of which make them valuable or useful for purposes other than as media for long-distance communications, unless they are actually used as media for personal and business correspondence, and (ii) outsized, rigid objects not capable of enclosure in envelopes, sacks, boxes or other containers commonly used t
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