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

Ex Input:
Which actress played the part of Angie in EastEnders?

Ex Output:
angie watts


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

Ex Output:
edward the elder


Ex Input:
Which African country has land borders with Algeria and Libya?

Ex Output:

libya