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: Bob listed his electric generator for sale on the community list. Sentence2: Someone expressed interest in buying it. Sentence3: Bob hadn't started it since the previous year. Sentence4: He went outside to his shed and tried to run it. Sentence5: Bob was happy when his generator started without any issues.
A:
Bob, Someone