Bob is blue. Bob is cold. Bob is green. Bob is young. Dave is blue. Dave is furry. Dave is green. Dave is white. Dave is young. Fiona is blue. Fiona is cold. Fiona is furry. Fiona is green. Fiona is red. Fiona is white. Fiona is young. If someone is green then they are cold. Young people are red. If someone is furry and white then they are green.
Dave is not cold.