Definition: 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.
Input: Sentence 1: Tom was sleeping in on a weekend. Sentence 2: All of a sudden someone walked into his apartment. Sentence 3: Tom freaked out a bit. Sentence 4: The intruder told him he was there to change the air filter. Sentence 5: Tom had completely forgotten about it.

Unexpected Visitor