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: Amy took her kids sledding when it snowed. they climbed up the hill and sled down it. Eventually they had a snowball fight. After a few hours Amy said it was time to go home. They got hot chocolate and went back home.
 selected sentence: After a few hours Amy said it was time to go home.

Amy takes her kids sledding >Causes/Enables> Amy says it is time to go home