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: Danny was having a tough day. Sentence2: He had dropped his books, broken his bike and lost his phone. Sentence3: Things were beginning to look up. Sentence4: Suddenly, he tripped and hurt his knee. Sentence5: This was Danny's worst day ever.
A:
Danny