Our first Dinner Debate

With an 8 and 5 year old at the table, I think today we had our first family debate today. A friendly debate it was although my 8 year old and his mom found themselves on different sides of it. No insults were thrown but there has been no real resolution or even compromise. The debate rages on. The question: Is Clifford an indoor dog or an outdoor dog? I think I know the answer, but I don't want to take sides.