| http://www.w3.org/ns/prov#value | - Famous for writing on etiquette, author Emily Post, (1872 ??? 1960) states that, ???Anyone receiving an invitation with an RSVP on it is obliged to reply.??? Recent editions of her book, ???Etiquette in Society, in Business, in Politics and at Home,??? say that not following this standard is ???inexcusably rude.??? When hosting an event, especially one with food, the host or hostess needs to know
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