TopicUse

An indication of where a particular Topic is used in a NewsML document. The value of the Topic attribute must consist of a # character followed by the value of the Duid of a Topic in the current document. The value of the Context attribute is an XPath pattern indicating the context where the referenced topic is used within the subtree to which the current Catalog applies. If the Context attribute is not present, the TopicUse element simply states that this topic is present somewhere in the subtree.