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: Bill loved to play in the forest. Sentence2: One day, while playing a game, bill got himself lost. Sentence3: He walked around the forest for hours. Sentence4: Finally, his mother came into the forest and brought bill back home. Sentence5: Bill was happy to be home with his mother!
Solution:
His mother, Bill