I felt it was easy too, but I felt that almost every item listed was a vehicle and in the park. If it helps here was my reasoning. To start with I checked the dictionary for a definition and it appears that a vehicle is "A device or structure for transporting persons or things; a conveyance". Then it was a matter of categorizing. The only one I had to deliberate was the horse, because while it transports persons or things it isn't a device or structure. I ended up saying almost everything was a vehicle and in the park.