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

Input: Consider Input: Ashgabat is the capital of which country, a former Soviet republic in Asia?

Output: ashgabat

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

Output: edward the elder

Input: Consider Input: What is the capital of Canada?
Output: canada