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: Tom was skiing for the first time. He was going very well staying up on his skis. So he was allowed to take the T-bar up to one of the small hills. He was afraid he wouldn't be able to get off when it reached the top. He was a little shaky, but he got off the t-bar without falling.
 selected sentence: He was afraid he wouldn't be able to get off when it reached the top.

Tom takes the T-bar up a small hill >Causes/Enables> Tom worries about getting off of the T-bar