In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.
Q: Sentence1: Lily was planning a grocery list. Sentence2: First she wrote down all of her food. Sentence3: Then, she opened a coupon book. Sentence4: She cut out any coupons for things she needed. Sentence5: Finally, she was ready to go to the store.
A:
Lily