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.

Where does the water come from for victoria falls?
Zambezi River

When did the washington capitals last win a stanley cup?
June 7, 2018

When did lays sour cream and onion chips come out?

the late 1970s