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: Howard was in the city. Sentence2: He went into a bar for a drink. Sentence3: He suddenly saw this beautiful girl. Sentence4: He spoke to her and got her number. Sentence5: This made his night.
Output:
Girl, Howard