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.

What flag has a blue triangle and red and white stripes?
Puerto Rico and Ohio

Which african american led the back to africa movement during the early 20th century?
Marcus Mosiah Garvey Jr.

When did trinidad and tobago became one country?

1889