Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Input: Consider Input: What style of facial hair was famously worn by American Civil War general Ambrose Burnside?

Output: ambrose burnside


Input: Consider Input: Which Noble prize-winning novelist is best known for 'And Quiet Flows the Don?

Output: and quiet flows the don


Input: Consider Input: Which sub species of brown bear is the largest member of the bear family?


Output: brown bear