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: Joan's grandma had to go to a nursing home. Joan went to help clean out the grandma's old house. She came across a shelf full of dusty jars with vegetables inside. Joan saw the dates were very old so the vegetables were spoiled. She packed the jars, dusted them, and put them on a shelf at home.
 selected sentence: She packed the jars, dusted them, and put them on a shelf at home.

Joan sees dusty jars >Causes/Enables> Joan dusts the jars