In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.

Example Input: Sentence 1: Kaya wanted a dog for her birthday. Sentence 2: Her mom and dad said ten was too young to care for a pet. Sentence 3: Kaya promised to walk the neighbor's two dogs daily for a month. Sentence 4: She followed through, so her parents did the same. Sentence 5: They bought Kaya a dog for her birthday!
Example Output: Dog

Example Input: Sentence 1: Lewis was trying to play a trick on his sister. Sentence 2: He waited until she was sleeping then he went outside. Sentence 3: Lewis began to bang on her window and make noise. Sentence 4: His sister was terrified. Sentence 5: His parents saw him laughing and knew it was him.
Example Output: Lewis and the Trick

Example Input: Sentence 1: I was taking an exam. Sentence 2: I felt confident since I had been studying for it for a week. Sentence 3: When I got my exam back, I found I had scored 80%. Sentence 4: My friend, who only studied for one day, scored 90%. Sentence 5: I was mad since she did better than I did even though I studied more.
Example Output:
Exam