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: Shawn was a young boy. Sentence2: He wanted a new bike for his birthday. Sentence3: His dad told him he would have to work for it. Sentence4: Shawn got a job cutting grass. Sentence5: Shawn saved enough and bought a new bike.
Solution:
Shawn, Dad