Abstract: A method of facilitating content selection includes generating benchmark queries for a particular category. Generating the benchmark queries includes applying a text prompt as input to a language model trained on a knowledge base. The text prompt requests search queries indicative of user interest in the particular category. The method also includes selecting, responsive to new search queries entered by users, content items associated with the particular category for delivery to client devices of the users. Selecting the content items includes determining whether the new search queries correspond to the particular category at least in part by comparing the new search queries to a query set that includes the benchmark queries.