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: Marcy was learning how to tell time. Her mother told her she would pick her up at three o'clock. Marcy watched the clock. Finally, it said three o'clock. Marcy knew how to tell time!
 selected sentence: Marcy watched the clock.

Marcy's mom told Marcy she would pick her up at three >Causes/Enables> Marcy watches the clock