[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] union of classes, OWL updateBase element, RSS Syndication module updateFrequency element, RSS Syndication module updatePeriod element, RSS Syndication module URI (Uniform Resource Identifier) absolute or partial relative, resolving RSS requirements for 2nd for vocabulary namespace uriref nodes URL (Uniform Resource Locator) URN (Uniform Resource Name ) Userland, role in growth of RSS UUID (Universally Unique Identifier) |