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.

[Q]: story: Amy was friends with Erin and Sara. Erin and Sara had been making fun of Amy in class one day. Amy decided she no longer wanted to be their friend. She walked into class and sat across the room. Amy knew she made the right choice as they to giggled and whispered.
selected sentence: Amy was friends with Erin and Sara.
[A]: Amy goes to school with Erin and Sara. >Causes/Enables> Amy is friends with Erin and Sara

[Q]: story: Mary went to a store. Mom told her to buy four things. In the store she could not remember what the fourth thing was. She had to call her mom. She told her to buy butter.
selected sentence: Mom told her to buy four things.
[A]: Mary went next to the store >Causes/Enables> Mary's mom requests four things

[Q]: story: Sasha was sleeping one night. She woke up and the bed was wet everywhere. She turned the light on to see what it was. Sasha learns she peed the bed. Sasha is embarrassed at herself and washes her sheets.
selected sentence: Sasha is embarrassed at herself and washes her sheets.
[A]:
Sasha pees the bed >Causes/Enables> Sasha washes her sheets