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: The county of Rochester needed a new park. Sentence2: The county council couldn't decide where to put it though! Sentence3: They couldn't afford the landscaping for one in the old empty lots. Sentence4: So they went to the city and asked for help. Sentence5: The city was glad to help, and soon Rochester had a new park.
Example Output: County council, City, County of rochester

Example Input: Sentence1: Anna went to the grocery store. Sentence2: She saw a sample stand and wanted to try something. Sentence3: They had mozzarella sticks and Anna took one. Sentence4: It was so good she took another. Sentence5: The woman yelled at her and said the rules were one only.
Example Output: The woman, Anna

Example Input: Sentence1: Terry has lost his job. Sentence2: Terry doesn't know what to do to feed his family. Sentence3: He heads out to ask for help. Sentence4: He gets help from a local church who gives Terry food. Sentence5: Terry comes home and feeds his whole family with the food he got.
Example Output:
Church, Family, Terry