Definition: Given a question, generate a paraphrase of that question wihout changing the meaning of it. Your answer should reword the given sentence, but not add information to it or remove information from it. The answer to your question should be the same as the answer to the original question.
Input: Question: name a river that forms a border between the states of washinghton and oregon?

what is name of the north american river that forms the border between the states of oregon and washington?