Detailed 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.
Q: Sentence1: My friend Jake ate a burger. Sentence2: He had a weird feeling in his stomach after eating it. Sentence3: Several hours later he fell ill. Sentence4: He went to the doctor to cure his illness. Sentence5: His doctor gave him antibiotics to get better.
A:
The doctor, I (myself), Jake