Definition: 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.
Input: Sentence1: Gina was at the grocery store near her home. Sentence2: She needed to get a copy of a key made. Sentence3: She hoped the line was short so it would be a quick trip. Sentence4: In the store there was a line at the service desk. Sentence5: Gina let out a big sigh, knowing this was going to be a long wait.
Output:
Gina