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: The man signed up for a new cell phone plan. Sentence2: He got a new phone with the plan. Sentence3: He was not happy with the service. Sentence4: He cancelled the service early. Sentence5: He had to pay the full retail price of the phone as a penalty.
Output:
The man