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: Who plays ricky in ricky nicky dicky and dawn?

SOLUTION: Casey Simpson

PROBLEM: Who plays sonny corinthos dad on general hospital?

SOLUTION: Ron Hale

PROBLEM: The head of the radius articulates with which structure and bone?

SOLUTION:
orbicular ligament