Detailed Instructions: 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.
Problem:Sentence1: John is a very kind boy. Sentence2: One day, he saw a poor boy near his house. Sentence3: John asked that poor boy to play with him. Sentence4: They started playing football. Sentence5: John gifted his shoes to him and made him happy.
Solution:
John, Boy