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: One day I cooked a delicious chicken breast for supper. Sentence2: Just as I sat down to eat the telephone rang. Sentence3: As I was talking to the caller I saw my cat jump on the table. Sentence4: She grabbed my chicken breast and ran away with it. Sentence5: I had to eat a sandwich for supper.
Output:
I (myself), Caller, Cat