instruction:
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.
question:
Where was the first mcdonald's in phoenix built?
answer:
Central Avenue and Indian School Road


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


question:
Who was longest serving prime minister of india?
answer:

Pandit Jawaharlal Nehru