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.
Q: 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.
A:
County council, City, County of rochester