user
Given a cartoon image and a caption. Caption: Look, you agreed to a trial separation. Question: Generating an explanation of why this image/caption combination is funny. Answer: 
assistant
A play on the idea of trail separation not being as definitive as divorce. This couple agreed to live apart temporarily without becoming divorced, but are still attached both by marriage, and in this case, literally by a tandem bike. The bike is a somewhat awkward not-full-separation, just like a trial separation.