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: Gina was talking to a guy online. Sentence2: The guys wanted to meet with her. Sentence3: Clever Gina thought this was a bad idea. Sentence4: So she declined the offer to meet up. Sentence5: His parents praised Gina for being so smart.
A guy, Gina, Parents, The guys