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: Pam was walking down the street. It was the summer and she was very hot. She saw some kids selling lemonade. She went up to their stand and bought some. Pam was very excited and after she drank it, she cooled off.
 selected sentence: Pam was very excited and after she drank it, she cooled off.

Pam buys lemonade >Causes/Enables> Pam drinks