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: Martha was in her living room. Suddenly there was a knock at the door. No one was there but a big box was on her porch. She looked inside and saw a ton of gently used baby toys. It was really helpful because she was a poor mother.
 selected sentence: She looked inside and saw a ton of gently used baby toys.

Someone puts a box on Martha's porch >Causes/Enables> Martha looks in the box