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: Cathy loved gardening. Sentence2: Last year, Cathy decided to plant some tomatoes in the garden. Sentence3: As Cathy was tending to the garden, she noticed ripe tomatoes. Sentence4: Cathy decided she would make a dish with her fresh tomatoes. Sentence5: Cathy enjoyed the salsa she made with her fresh tomatoes.
Output:
Cathy