1. A data processing method comprising the steps of: inputting context description data described in a hierarchical structure, wherein the hierarchical structure comprises: the highest hierarchical layer in which time-varying media content and the context of the media content are formed into a single element representing media content; the lowest hierarchical layer in which an element represents a media segment formed by dividing the media content and is assigned, as an attribute, time information relating to a corresponding media segment and a score; and other hierarchical layers include elements which are directly or indirectly associated with at least one of the media segments and which represent scenes or a set of scenes; and selecting at least one segmet from the media content, on the basis of the score assigned to the context description data.