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: Krista was organizing her office. Sentence 2: She bought some new shelves. Sentence 3: THey were big and heavy. Sentence 4: She assembled them carefully. Sentence 5: When she put all her books on them, they collapsed!

The Shelves