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: Jim agreed to babysit his nephew today. Sentence2: He usually wouldn't but he had nothing else to do. Sentence3: They spent the afternoon coloring and playing with toys. Sentence4: Jim told his sister that he would love to babysit again soon. Sentence5: He forgot how much fun it was being a kid!
Output:
Jim, His nephew, His sister