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

Ex Input:
Which 1981 film , directed by John Huston, starred footballers Bobby Moore, Pele and Osvaldo Ardiles?

Ex Output:
osvaldo ardiles

Ex Input:
Name the town in California where Clint Eastwood was elected mayor in 1986.?

Ex Output:
clint eastwood

Ex Input:
Which four letter word beginning with U is the pigmented layer of the eye, lying beneath the sclera and cornea, and comprising of the iris, choroid and ciliary body?

Ex Output:
ciliary body