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: I took a test in history. Sentence2: When I sat down to take the test, I was shocked. Sentence3: I could barely remember anything the test was asking me about. Sentence4: I did my best, but I was sure I failed. Sentence5: When I got the test back, I realized I hadn't done as bad as I feared.
Output:
I (myself)