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: Joey's and his wife have a toddler. Sentence2: They decided it was time to get the child to potty train. Sentence3: Joey tried everything to get their child to learn. Sentence4: He hired an expert to help. Sentence5: Now their child goes to the bathroom unassisted.
Solution:
An expert, His wife, A toddler, Joey