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

Q: 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?

A: incandescent light bulb
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Q: In which film of 1995 did Robert De Niro and Al Pacino appear on screen together for the first time?

A: al pacino
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Q: What is the capital city of Brunei?

A:
brunei
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