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.

Ex Input:
Sentence1: Amy loved The Babysitters Club books when in elementary school. Sentence2: When she was 17 they made a movie. Sentence3: A friend suggested she see it. Sentence4: Amy felt she was way too adult to see that movie. Sentence5: At the theater she decided to see a Pg13 movie instead.

Ex Output:
Amy, Friend

Ex Input:
Sentence1: Jane passed a small park-like zoo she remembered visiting as a child. Sentence2: She turned her car into the park, feeling nostalgic. Sentence3: Jane went to see the deer, like the ones she once fed by hand. Sentence4: She saw these deer were scrawny, mangy and had terrified eyes. Sentence5: Jane wished she had never stopped the car.

Ex Output:
Jane, Deer

Ex Input:
Sentence1: Todd has been in the hospital for many days. Sentence2: The doctors say there is sign of recovery. Sentence3: His family is planning for the worst. Sentence4: Later in the week Todd's doctor said he was pulling the plug. Sentence5: Todd was pronounced at at 6 pm today.

Ex Output:
Family, Doctors, Todd