Dave is round. Dave is white. Erin is big. Erin is green. Erin is red. Erin is round. Erin is smart. Erin is young. Fiona is big. Fiona is green. Harry is big. Harry is white. White, round things are red. Big things are round. All white, big things are smart. If something is big and green then it is white. If Harry is smart then Harry is young. If something is smart then it is big.
Dave is not round.