user
Given a cartoon image and a caption. Caption: Welcome to the greatest living room on Earth! Question: Generating an explanation of why this image/caption combination is funny. Answer: 
assistant
The slogan for the popular Ringling circus is "The Greatest Show On Earth", and while there is a circus ring here, instead of being a show, this ring doesn't contain any of the interesting parts of a circus like the animals or performers, and instead just exists in a living room.