| http://www.w3.org/ns/prov#value | - For quite a few people who are currently active online, it was a formative experience to be confronted with a blank ???Username??? field where the only restrictions were things like ???must begin with a letter, be 6-12 characters in length, and contain no punctuation other than underscores and dashes???, and where the system was run by a pseudonymous authority like ???The Adventurer??? or ???Big B
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