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: What was this? Cathy could see a trail of cookie crumbs leading out of the kitchen. She decided to investigate. The crumbs went down the hallway and into the back bedroom. There she found her niece happily munching a huge handful of oreos.
 selected sentence: The crumbs went down the hallway and into the back bedroom.

Cathy's niece eats a cookie in the hallway >Causes/Enables> Cookie crumbs are in the hallway