Cat or Dog?

DD's current favorite game is sitting in front of our 6th-floor window, watching the street below, waiting for dogs to walk by with their owners. When she sees a dog -- yes, her visual acuity is remarkable, and she even recognizes the tiny ones -- she erupts in shouts of "GOG!! GOG!! GOG!!"

We were at my parents' last week, the first time in a few weeks, and definitely the first time since the above game was created.
DD got a glimpse of their cat scamper across the room and within seconds...
"GOG!! GOG!! GOG!!"

We explained that, while this animal is also furry and walks on 4 legs, it's called a "CAT", to which she repeated "kahhh, kahhh". But a few hours later I asked DD, "What animal did we see at Grandpa's house? Cat or dog?", to which she responded enthusiastically, "GOG!".