Definition: 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'.

Positive Example 1 -
Input: What country has borders with Libya, Sudan and Israel?
Output: location

Positive Example 2 -
Input: What child actress delighted audiences in Curly Top and Heidi?
Output: film

Negative Example 1 -
Input: Actor Jack Nicholson won his first Best Actor Oscar for which film?
Output: film

Negative Example 2 -
Input: Which famous novel was written in 1877 by Anna Sewell as a protest against cruelty to horses?
Output: anna sewell

Now complete the following example -
Input: Born in Argentina in 1942, which pianist and conductor has been has been music director of the Berlin State Opera since 1992, and was music director of the Chicago Symphony Orchestra from 1991 to 2006?
Output: 

music