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: Tony wanted to impress his friends so he bought a big house. Sentence 2: He invited them so they could compliment him on his purchase. Sentence 3: His friends were suitably impressed, but it wasn't enough for Tony. Sentence 4: He felt alone in his big house as soon as they were gone. Sentence 5: So he bought a cat and a dog and felt he had company.

Alone in a big house