Q: 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.
Sentence1: Beth and her sister Ali were at May's house, Sentence2: Ali and May's sister Val hated each other. Sentence3: Beth and May had to break up a fight between them. Sentence4: Beth tried to find out why the girls were fighting. Sentence5: She could get no where since the girls just blamed each other.
A:
May, Beth, Val, Ali