Input question: Which unsuccessful plot of 1820 was led by Arthur Thistlewood?

Output answer: cato street conspiracy

Input question: James Arthur was the winner of which TV reality programme in December 2012?

Output answer: x factor

Input question: What name is given to someone who enforces racing rules and regulations at many types of race track?

Output answer: steward

Input question: What colour is the live wire in an electrical plug?

Output answer:
brown