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: Dorit hated surprises. Sentence 2: Her sister knew this but planned a surprise birthday party anyway. Sentence 3: Dorit sensed that her sister was planning something. Sentence 4: She went around to the back of the house instead of the usual front. Sentence 5: Dorit came up behind the hiding guests and surprised all of them.

The Surprise Party