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: David was whistling in class. Sentence2: The teacher didn't know who was making the noise. Sentence3: She didn't know who to punish. Sentence4: One of the students told the teacher after class that it was David. Sentence5: The next time David whistled, the teacher blamed David.
One of the students, Teacher, David

Sentence1: Kate wanted pasta for lunch. Sentence2: But the restaurant was closed due to a fire. Sentence3: Kate realized she only had 15 minutes left on her lunch break. Sentence4: This left her no time to go to another restaurant. Sentence5: Kate went back to work without lunch.
Kate

Sentence1: I woke up not feeling like working. Sentence2: I had zero motivation to get started. Sentence3: After I took a shower, I checked my email. Sentence4: I found a $20 bonus and was happy. Sentence5: It was the encouragement I needed to start my day.
I (myself)