Given a trivia question, classify broad topical category from this list: 'theater', 'geology', 'book', 'tv', 'astronomy', 'aviation', 'military', 'government', 'boxing', 'projects', 'metropolitan_transit', 'law', 'venture_capital', 'broadcast', 'biology', 'people', 'influence', 'baseball', 'spaceflight', 'media_common', 'cvg', 'opera', 'olympics', 'chemistry', 'visual_art', 'conferences', 'sports', 'language', 'travel', 'location', 'award', 'dining', 'martial_arts', 'comic_strips', 'computer', 'user', 'tennis', 'music', 'organization', 'food', 'event', 'transportation', 'fictional_universe', 'measurement_unit', 'meteorology', 'distilled_spirits', 'symbols', 'architecture', 'freebase', 'internet', 'fashion', 'boats', 'cricket', 'film', 'medicine', 'finance', 'comic_books', 'celebrities', 'soccer', 'games', 'time', 'geography', 'interests', 'common', 'base', 'business', 'periodicals', 'royalty', 'education', 'type', 'religion', 'automotive', 'exhibitions'.

Ex Input:
Which composer has amongst his work the The Flying Dutchman and Rienzi?

Ex Output:
music


Ex Input:
Which muralist was married to fellow Mexican artist, Frida Kahlo?

Ex Output:
visual_art


Ex Input:
Commander Shepard, Jacob Taylor, Miranda Lawson, Thane Krios, Grunt, Jack, Mordin Solus, Samara, Morinth, Legion, Zaeed Messani, Garrus Vakarian and Tali'Zorah Vas Neema are characters in which computer game?

Ex Output:

cvg