TASK DEFINITION: An answer is given. Generate a question for which the given answer is either a direct or partial answer.
PROBLEM: Answer: iquitos

SOLUTION: which cities does the amazon travel through?

PROBLEM: Answer: nobel prize in physiology or medicine

SOLUTION: what prize did sir fredrick banting get?

PROBLEM: Answer: detroit pistons

SOLUTION:
what nba team won back to back in 1989 and 1990?