user
Given a cartoon image and a caption. Caption: My last office had a castle. Question: Generating an explanation of why this image/caption combination is funny. Answer: 
assistant
A silly joke about employees who work in fish bowls --- sometimes, fish bowls have decorations like fake seaweed or castle sculptures. While in the real world it would be impressive to work a desk job in a castle, here, the castle of the previous job is just a small, fake castle decoration in a fish tank.