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.

Example 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.
Example Output: Amy, Friend

Example Input: Sentence1: I sent my friend a thank you gift. Sentence2: A few weeks later, she posted a picture on facebook. Sentence3: It was a picture of a lasane in the pan I had sent her. Sentence4: It said Leah's Kickasserole on the side. Sentence5: She posted how much she loved the dish.
Example Output: I (myself), Leah, Friend

Example Input: Sentence1: Glen took a vacation to Canada. Sentence2: He went with his best friend Ed and stayed at a fancy hotel. Sentence3: Glenn and Ed ordered room service at the hotel. Sentence4: They ate their food and talked about sightseeing activities. Sentence5: They both decided to go to the Montreal Canadiens game the next day.
Example Output:
Ed, Glenn