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 was very sick one day. Sentence2: I was vomiting all day long. Sentence3: I finally went to the doctor to get a diagnosis. Sentence4: After tests were run, I found out I was pregnant! Sentence5: I was very excited and nervous to have the baby.
Output:
I (myself), The baby, Doctor