instruction:
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 simplicity, answers should be in all lower cased letters.
question:
Category: GOVERNMENT AGENCIES 
Clue: The Centers for Disease Control & Prevention is an agency of this department
answer:
health and human services


question:
Category: THE WINTER PALACE 
Clue: In 1881 the "Czar Liberator", the II czar of this name, asked to be taken to the palace to die after being fatally wounded
answer:
alexander ii


question:
Category: FOLKLORE 
Clue: According to the ballad, "'Twas on the Illinois central that" this engineer "won his fame"
answer:

casey jones