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: Who wrote the song blowin in the wind?

SOLUTION: Bob Dylan

PROBLEM: Who invented the first curling iron in 1872?

SOLUTION: Francois Marcel Grateau

PROBLEM: Sodium chloride is a chemical name of which substance?

SOLUTION:
regular salt