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

Q: Who was the father of Edward the Elder, the Anglo-Saxon King from 899 to 924?

A: edward the elder
****
Q: Cassandra, Grizabella and Skimbleshanks are all characters in which Andrew Lloyd Webber musical?

A: andrew lloyd webber
****
Q: In the Bible, how is the Decalogue also known?

A:
bible
****