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: Sal talked about all his coworkers behind their backs. Sentence2: When Marie got married, she didn't invite Sal. Sentence3: All the other coworkers were there. Sentence4: They loved having a night out without Sal's negativity. Sentence5: Sal couldn't understand why he'd not been invited.
Output:
Marie, Coworkers, Sal