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: Which unit is used to measure mass in the metric system?

SOLUTION: kilogramme

PROBLEM: Who played roxy in the story of tracy beaker?

SOLUTION: Sophie Borja

PROBLEM: Who voices friday in captain america civil war?

SOLUTION:
Kerry Condon