You will be given a definition of a task first, then some input of the task.
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.

Sentence1: Ana and her friends liked playing basketball together. Sentence2: They'd play every Saturday at a somewhat isolated court. Sentence3: When they arrived for their weekend game, the court was gone! Sentence4: The town had torn it up because they thought no one used it. Sentence5: In its place the town had put a playground with swing sets instead.
Output:
Town, Friends, Ana