instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Kronos (or Cronus) was the Greek equivalent of which Roman god?
answer:
cronus


question:
What actress, born in Muscat, Oman, began acting on Australian television on Paradise Beach and Home and Away and is known for her roles in Wedding Crashers (2005), Hot Rod (2007), Definitely, Maybe (2008) and Confessions of a Shopaholic (2009)?
answer:
definitely, maybe


question:
Singer David Bowie teamed up with UK band Queen on which 1981 hit single?
answer:

david bowie