You will be given a definition of a task first, then some input of the task.
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: Regina did not like her name at all. Sentence2: Every time she heard someone say it she would nearly wince. Sentence3: She decided to have her name legally changed. Sentence4: She filled out all the forms and got her name changed. Sentence5: She was so happy to finally be named Berry-Smoke Winchester IV.
Output:
Regina, Someone