Abstract: Interactively associating user-defined descriptions with objects. At least two users create descriptions based on provided objects. The users analyze the descriptions to determine whether the users were provided with the same or different objects. If all the users are correct in their determinations, associations between the created descriptions and the corresponding objects are adjusted. In some embodiments, the users interact via a two-player game where the input is obfuscated and the output is optionally obfuscated. For example, the users each provide a search query responsive to receipt of a search intention. If a single search intention was provided and all the users make the correct determination, the search queries are associated with the search intention.