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: Ira went to the store to buy Something to eat. Chips were on sale so he bought a bag. Ira counted the chips as he ate them. The last whole chip in the bag was number 63. Ira ate the small crumbs and counted them as chip number 64.
 selected sentence: The last whole chip in the bag was number 63.

Ira counts the chips as he eats them >Causes/Enables> The last whole chip in the bag is number 63