TASK DEFINITION: In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.
PROBLEM: What does ncis stand for in law enforcement?

SOLUTION: Naval Criminal Investigative Service

PROBLEM: Who started the fire at rick's on desperate housewives?

SOLUTION: Porter, Preston

PROBLEM: What percentage of alcohol does corona extra have?

SOLUTION:
4.5%