Q: 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.
Sentence1: Wells wanted to become a mechanic. Sentence2: He practiced taking apart engines and putting them back together. Sentence3: One day, Wells did not put an engine back together correctly. Sentence4: He started the engine and it exploded. Sentence5: Wells died due to his inexperience.
A:
Mechanic, Engines, Wells