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 did the movie the wizard of oz premiere?
Orpheum Theatre in Green Bay

Is a tld that was originally intended for non profit entities?
.0rg

What is the most expensive van gogh painting?

Portrait of Dr. Gachet