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: John was a great baker. Sentence2: He had a chocolate chip cookie recipe people were dying for. Sentence3: He wouldn't tell anyone what the recipe was. Sentence4: Someone broke in and stole his recipe box. Sentence5: They were determined to find out the secret!
Output:
Someone, John