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: Duncan sat down with his friend looking for ideas. Sentence2: They wrote so many different things down trying to find ideas. Sentence3: Ultimately they were stumped. Sentence4: Duncan searched the internet and got some new inspiration! Sentence5: Five minutes later they sat back down and Duncan had the perfect plan!
A:
Friend, Duncan