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

[EX Q]: Name the actress, she died in August 2002, who played the part of 'Madame Edith Artois' in the TV series 'Allo, Allo'?
[EX A]: edith artois

[EX Q]: The novels 'The Shipmaster, 'The Iron Ships' and 'The Trade Winds' by Cyril Abraham, are based on which 1970's British tv series?
[EX A]: cyril abraham

[EX Q]: The cast iron plant is another name for which pot plant?
[EX A]:
aspidistra elatior