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

Ex Input:
The 1981 film Chariots of Fire featured the achievements of Harold Abrahams and which Scottish missionary who refused to run in the 100m heats on a Sunday and instead won the 400m Gold Medal in the 1924 Olympics?

Ex Output:
chariots of fire


Ex 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?

Ex Output:
incandescent light bulb


Ex Input:
Who wrote the music for the ballet 'The Three Cornered Hat'?

Ex Output:

the three-cornered hat