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: Tom wanted a pet. Sentence 2: His parents decided to buy him a dog. Sentence 3: Tom loved his dog very much. Sentence 4: One day, the dog ran away. Sentence 5: Tom cried when he could not find his dog.

The Dog