A song may be matched with information in a song categorization database so that one or more categories associated with the song are identified. Specifically, a method and system for associating one or more advertising categories with a song includes receiving a set of child categories and receiving a wordnet graph. Synsets from the wordnet graph are assigned to function as activators for one or more categories. Next, a set of parent categories relative to the child categories are received. One or more scores are assigned to the parent categories based on their relationships to the child categories. Synsets from a work, such as a song lyric, are compared to the wordnet graph. Relevant child categories are identified based on synsets which match one or more activators. Matching activators are found by using only hypernym relationships between a synset from a work and an activator.