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

[Q]: Which cartoon character had friends called Velma Dinidey and Daphne Blake?
[A]: daphne

[Q]: The Church of the Savior on Spilled Blood, built on the site of the assassination of Tsar Alexander II, is in which Russian city?
[A]: church of the savior on blood

[Q]: Brian Fletcher won the Grand National on Red Rum and which other horse?
[A]:
brian fletcher