TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Written by Edgar Allen Poe and published in 1845, what poem repeats the famous line 'nevermore'?

SOLUTION: edgar allan poe

PROBLEM: 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?

SOLUTION: incandescent light bulb

PROBLEM: Edward II was murdered in the south tower of which castle?

SOLUTION:
edward ii of england