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: Alexis was walking through the park. Sentence2: Suddenly, she noticed two girls fighting. Sentence3: The fight was becoming physical. Sentence4: Alexis decided to watch and make sure they were okay. Sentence5: Soon, the police arrived and arrested the girls.
A:
Two girls, Police, Alexis