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: Kate wanted to give her boyfriend a surprise party. Sentence 2: Unfortunately a friend let him know ahead of time. Sentence 3: Kate knew that he knew. Sentence 4: The boyfriend pretended to be surprised anyway. Sentence 5: Kate appreciated his effort.

Ruined Surprise