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: When I picked up my phone I saw something. Sentence2: My phone was cracked. Sentence3: I got upset. Sentence4: But then I realized something. Sentence5: Only my screen protector got cracked.
Output:
I (myself)