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: Jason has messy attic that needs to be cleaned. Sentence2: Jason does not want to clean the attic alone. Sentence3: He invites his three friends over for pizza. Sentence4: Jason put the pizza in the attic. Sentence5: Jason has his friends help clean the attic in exchange for pizza.
Solution:
Jason, His three friends