Instructions: 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.
Input: Sentence1: My wife was in a hurry today. Sentence2: She needed to print a document on her iPhone. Sentence3: She needed the document in two minutes. Sentence4: I told her she could send a message to our new wireless printer. Sentence5: She printed the document and was relieved.
Output:
I (myself), Wife