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 truck was starting to act weirdly recently. Sentence2: I asked my parents what they thought the issue would be. Sentence3: No one really knew, but it was getting worse. Sentence4: I finally took it to a mechanic and he said it was a simple fix! Sentence5: He gave me an oil change and my truck was as good as new!
A:
I (myself), My parents, Mechanic