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

Which model was married to photographer David Bailey for 10 years, from 1975?
david bailey

Allopurinol is typically prescribed for which illness?
allopurinol

Cheryl Crane, aged 14, the daughter of which US actress, fatally stabbed her mother's boyfriend, Johnny Stampano in 1958, while defending her mother?
cheryl crane