TASK DEFINITION: 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.
PROBLEM: Where does the ulna articulate with the humerus?

SOLUTION: semilunar notch

PROBLEM: Who played jj's husband on criminal minds?

SOLUTION: Joshua Regnall Stewart

PROBLEM: What do you call someone from cape breton?

SOLUTION:
Cape Bretoner