I can't believe we're still discussing about what a pizza is because for you is acceptable to make a rice salad and call it a pizza. Please don't insult my intelligence, there is no need to "clearly define" a pizza for this type of contest, just google pizza and compare the images: do they look like rice salad? Do they look like unbaked stuff? Do they look like a mix of ketchup and mayonnaise thrown in a plate? If someone is writing on this forum it means he has internet access, they ask you to make a pizza then just google what a pizza is, that's it.