You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.
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Question: Category: TRAVEL INDIANAPOLIS 
Clue: Union Station has a hotel that features these sleeping cars converted into hotel suites

Answer: pullman cars


Question: Category: THE ENVIRONMENT 
Clue: According to Guinness, this NW state has the largest living organism, a fungus covering 1,500 acres

Answer: washington


Question: Category: THE 1970s MUSIC SCENE 
Clue: The 1972 film "Fillmore" chronicled the closing of promoter Bill Graham's Fillmore West in this city

Answer:
san francisco