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

Example Input: Who was the only British medal winner at the 2010 Winter Olympics?
Example Output: 2010 winter olympics

Example Input: On January 26, 1879, who was granted a patent for r an electric lamp using a carbon filament or strip coiled and connected to platina contact wires?
Example Output: incandescent light bulb

Example Input: Lady Day (The Feast of the Annunciation) is on what date?
Example Output:
annunciation