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: It was Christmas eve. Rachel and her brother wanted to see their gifts. They decided to try to sneak downstairs to see the gifts. They made it to the top of the stairs when they saw a trap. Their mom had set up noisy paper to keep them from going further.
 selected sentence: They made it to the top of the stairs when they saw a trap.

Rachel and her brother sneak down stairs >Causes/Enables> Rachel and her brother see a trap