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.

[EX Q]: Who wrote dont it make my brown eyes blue?
[EX A]: Richard Leigh

[EX Q]: Who drained the marshes of medoc in bordeaux france planting small vineyards?
[EX A]: Dutch traders

[EX Q]: B cells give rise to plasma cells which produce?
[EX A]:
antibody molecules