An answer is given. Generate a question for which the given answer is either a direct or partial answer.

Ex Input:
Answer: heinrich himmler

Ex Output:
who were other leaders of the nazi?

Ex Input:
Answer: columbia river

Ex Output:
name a river that forms a border between the states of washinghton and oregon?

Ex Input:
Answer: north river (hudson river)

Ex Output:
which river separates manhattan and new jersey?