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: The kids had a pet turtle. Sentence2: It was green with a big shell. Sentence3: They fed it carrots every night. Sentence4: They worried that he was lonely. Sentence5: They bought a second turtle to keep him company.
Solution:
Pet turtle, Kids, Second turtle