TASK DEFINITION: An answer is given. Generate a question for which the given answer is either a direct or partial answer.
PROBLEM: Answer: funny things happen down under

SOLUTION: what was olivia newton-johns oldest movie?

PROBLEM: Answer: richard harris

SOLUTION: who plays dumbledore in the harry potter movies?

PROBLEM: Answer: hudson bay

SOLUTION:
what did hudson discover between 1610 and 1611?