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: Tina did not get much sleep last night. Sentence2: As a result, she was very tired at work. Sentence3: During lunch, Tina drank two cups of coffee. Sentence4: After Tina drank the coffee, she felt wide awake. Sentence5: By the end of the day, Tina no longer felt sleepy.
Solution:
Tina