Detailed Instructions: 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: Katy loved to cook. Sentence2: She just finished dinner one night and decided to make a dessert. Sentence3: She picked out a recipe, but did not have all the ingredients. Sentence4: She made some substitutions that she thought would work. Sentence5: When she removed the dessert from the oven, it was not edible.
A:
Katy