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: Oliver felt like he'd spent hours unwrapping caramels. But it would be worth his time and effort. Him mom was making caramel apples when he had them all open. She dipped the apples into the melted caramel. He got to eat one right away as a reward for his hard work.
 selected sentence: But it would be worth his time and effort.

Oliver spends lots of time unwrapping caramels >Causes/Enables> It will be worth it