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.
Problem:Sentence1: Lilian had just started high school. Sentence2: She was jealous of other girls that had kissed boys. Sentence3: She decided she needed to have her first kiss. Sentence4: After some searching she found a willing boy. Sentence5: But at the last minute, she had a change of heart.
Solution:
Boy, Lilian, Girls, Boys