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: David had a bad toothache. He made an appointment with the dentist. The next week the dentist had to pull his tooth. David went home very sore to recover. The next day David felt much better without the pain.
 selected sentence: He made an appointment with the dentist.

David has a bad toothache >Causes/Enables> He makes an appointment with the dentist