Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: In which British city would you find Barlinnie prison?

Answer: hm prison barlinnie


Question: 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?

Answer: incandescent light bulb


Question: The 1960 Summer Olympic Games were held in which city?

Answer:
1960 summer olympics