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: Our neighbor Walt is a hunter. We all live in the city. One day we were walking on the grass near our building. Walt pulled up what we thought was grass. We were amazed that they were wild onions.
 selected sentence: We were amazed that they were wild onions.

Walt pulls up wild onions >Causes/Enables> We are amazed