27. The method of claim 25 , wherein the semantic network represents an object model of an interactive television application.
25. A method, comprising: storing first data representing a semantic network, the semantic network representing a plurality of nodes, and a plurality of links interconnecting the nodes such that, for each of the links, one of the nodes is a subject node of the link, another of the nodes a target node of the link, and the respective link represents a verb between the corresponding subject and target nodes, and wherein the semantic network also comprises a further link having one of the plurality of links as a subject or target of the further link; receiving, at a computer having access to the first data, a query; and responding, by the computer, to the query with a response that depends upon which one of the plurality of links is the subject or target of the further link.