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Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Re 2: At least for U.S. sites, there are restrictions such as letters and numbers only, with at least one number, letters and numbers only with at least one letter, at least one number, and at least one upper-case letter, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	mathforum.org