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: Joe just entered the 8th grade. He was always used to making the best grades. When he got to science, he made his first "F" on a quiz. Joe was shocked. He decided he better buckle down and change his ways.
 selected sentence: He was always used to making the best grades.

Joe studies a lot >Causes/Enables> Joe gets the best grades