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.

[EX Q]: The proof of having paid the road toll for swiss highways is called?
[EX A]: Vignette

[EX Q]: Where does the mysterious benedict society take place?
[EX A]: the Learning Institute for the Very Enlightened

[EX Q]: When was the last time cinco de mayo fell on a saturday?
[EX A]:
2018 May 5