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: Rich had not been to the dentist in a long time. His wife scheduled him an appointment. Rich was very worried about going to the dentist. He found out he had a cavity and needed a tooth pulled. Rich is now nervous about his next appointment.
 selected sentence: Rich was very worried about going to the dentist.

Rich's wife makes a dentist appointment for Rich >Causes/Enables> Rich is very worried about going to the dentist