Definition: 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.
Input: Sentence1: Linda was having stomach pain and cramps. Sentence2: But changing her diet didn't help very much. Sentence3: She read about the benefits of fasting. Sentence4: So she went for long periods of time without eating. Sentence5: By letting her digestive system rest, Linda's stomach issues improved.
Output:
Linda