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: Hillary had never had a cup of coffee. Sentence 2: Her brother gave her a caffeine pill. Sentence 3: She couldn't sleep all night. Sentence 4: She was shaking and anxious. Sentence 5: She never had any caffeine again.

Caffeine