Definition: In this task, you will be given a short story. One sentence from the story is chosen. Consider the events that happen before that sentence, or are likely to have happened before it. Does any of them directly cause it, or simply make it possible? You should write your answer in the form " A >causes/enables> B". Try to use phrases and sentences from the story to compose your answer when possible.
Input: story: The owner rushed her dog to the vet. The vet said he needed emergency surgery. The owner wasn't sure how she would pay for it. The vet said he would do it for free. It was important for him to keep the dog healthy.
 selected sentence: The vet said he would do it for free.

The owner can't pay for surgery for her dog >Causes/Enables> The vet offers to do it for free