TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: What did Edwin Land invent because of his daughters' wish for instant and 'snappy' results?

SOLUTION: edwin h. land

PROBLEM: What is the nationality of Chelsy Davy, former girlfriend of Prince Harry?

SOLUTION: chelsy davy

PROBLEM: Name the popular writer, who died in 2010, and who rode the Queen Mother's horse Devon Loch when it inexplicably belly-flopped out of contention in the 1956 Grand National?

SOLUTION:
devon loch