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: Jenna didn't like her boss at work. Sentence2: He was always treating her as if she didn't exist. Sentence3: To make sure he'd notice her, she spiced his coffee with pepper. Sentence4: He drank the coffee and coughed it all up on her. Sentence5: This time, he had no choice to notice her and apologized.
Output:
Jenna, Boss