instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Ewart was the middle name of which British Prime Minister?
answer:
prime minister of the united kingdom


question:
What did Edwin Land invent because of his daughters' wish for instant and 'snappy' results?
answer:
edwin h. land


question:
He was a 60s chart topper but who was it that played 'The Artful Dodger in the 1948 film 'Oliver Twist'?
answer:

oliver