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:
Who is the boy in rihanna's we found love video?
answer:
Dudley O'Shaughnessy


question:
Who sings the song you find out who your friends are?
answer:
Tracy Lawrence


question:
When was pin code system introduced in india?
answer:

15 August 1972