| http://www.w3.org/ns/prov#value | - Some forms of such a queue are contemplated as follows: (i) a first-in-first-out queue, referring to FIG. 6, where each an item corresponds to a task, such as updating a portion of a publisher's information; and tasks are executed in the first-in-first-out order; (ii) a queue of items, referring to FIG. 7, where each item is a pair of (task, timestamp).
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