user
Given a cartoon image and a caption. Caption: Worse than a cold. It's a common cold. Question: Generating an explanation of why this image/caption combination is funny. Answer: 
assistant
A play on words. "common cold" in the modern world refers to the usually benign illness, but for this king, a "common" cold would mean a cold that only commoners (and not royalty, like himself) get. The doctor is suggesting that the "common" cold is not only a sickness, but also beneath his status as king.