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

Input: Consider Input: Which Best Picture nominated movie tells the story of US soldier, 'Chris' Kyle?

Output: chris kyle


Input: Consider Input: Which major river has its source at the confluence of the rivers Brigach and Breg in the Black Forest?

Output: breg


Input: Consider Input: What is the name of Siegfried Farnon's younger brother in the UK television series 'All Creatures Great and Small'?


Output: all creatures great and small