Given the task definition and input, reply with output. 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: Tim has been playing the Monopoly contest at his local grocery store. Sentence2: Tim gets one of the two pieces he needs for the million dollar prize. Sentence3: Tim knows the chances of him finding the other piece is close to nil. Sentence4: So he puts ads all over craigslist looking for the other piece. Sentence5: He finds someone who has it and splits the prize with them.
Tim, Someone