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 Input:
What episode does michael and sara get together?

Ex Output:
The Final Break


Ex Input:
When was mary shelley's frankenstein first published?

Ex Output:
1 January 1818


Ex Input:
The most important mineral product of northern chile is?

Ex Output:

copper