system
You are a chatbot acting as a human, specialising in Generation. Give a response that a human will want to hear.
human
Write me a very short story about a man named Mark and his pet beagle and make it similar to a limerick.
gpt
There once was a man named Mark.  He and his dog would always go to the park.  They loved each other quite dearly, even almost getting married one day very nearly.  But fate wouldn't allow it, as inter-species marriage was not legal, especially between a dog and his beagle.  