instruction:
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.
question:
Sentence1: Ken was a cook. Sentence2: Ken was given an order for a medium rare steak. Sentence3: Ken cooked up the steak nice and rare. Sentence4: He went to serve it to the customers. Sentence5: The customer told him they wanted it well done.
answer:
Customer, Ken, Customers

question:
Sentence1: Rick was at a restaurant. Sentence2: And he was curious about how all of the different items tasted. Sentence3: So he ordered way more than he could eat. Sentence4: And he forced himself to finish everything out of guilt. Sentence5: Rick tried to quell his curiosity the next time.
answer:
Rick

question:
Sentence1: Today we had breakfast at 10:30. Sentence2: My wife went to DD to buy coffee and croissants. Sentence3: We had oatmeal and blueberries as well. Sentence4: We have a coffeemaker but prefer DD coffee. Sentence5: It was a nice breakfast.
answer:
I (myself), Wife