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: Ken was playing Frisbee outside. Sentence 2: He threw it too hard one time. Sentence 3: It flew up on top of the roof. Sentence 4: His dad didn't let him go get it. Sentence 5: Ken never got it back.

Lost Frisbee