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 99 year old friend Charlie sits on a bench. Sentence2: He saw an overweight person and reacted. Sentence3: He asked me why people cannot control their weight. Sentence4: I told him it is very hard to not eat in this society. Sentence5: I think Charlie is getting senile.
A:
I (myself), Charlie, People