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: Mary was baking her mom a birthday cake. She used box mix and made it very rich. Then she decorated with lots of frosting. She even filled it with jam. Mary's mom said it was the best cake ever!
 selected sentence: She used box mix and made it very rich.

Mary was baking her mom birthday cake >Causes/Enables> She used box mix and made it rich.