Teacher: In this task, you're given the title of a five-sentence story and the first four sentences. Your job is to write the last sentence of the story such that it seamlessly connects with the rest of the story.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Title: Marcus Buys Khakis. Sentence 1: Marcus needed clothing for a business casual event. Sentence 2: All of his clothes were either too formal or too casual. Sentence 3: He decided to buy a pair of khakis. Sentence 4: The pair he bought fit him perfectly.
Solution: Marcus was happy to have the right clothes for the event.
Reason: Marcus is buying clothes for a business event.

Now, solve this instance: Title: Lost bike. Sentence 1: Kelley was so excited to get her new bike. Sentence 2: As soon as she got it, she immediately used it. Sentence 3: She rode it all around the park. Sentence 4: Unfortunately she got it lost.
Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Luckily after an hour, she found it.