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: Lucy was dog sitting for her friend Jennifer for a week. Sentence 2: One morning Lucy lost Jennifer's dog in the backyard. Sentence 3: Lucy panicked and ran all around the neighborhood calling for the dog. Sentence 4: A few minutes later a stranger brought the dog back to Lucy. Sentence 5: Lucy was relieved and decided not to tell Jennifer about it.

Lost Dog