Dave is green. Erin is green. Erin is young. Fiona is cold. Fiona is not quiet. Fiona is round. Fiona is young. Harry is cold. Harry is green. Harry is quiet. Harry is young. Young people are round. If someone is nice then they are big. All green people are cold. If someone is big then they are young. If someone is cold then they are nice. If someone is quiet and big then they are cold. If someone is quiet and green then they are round. If someone is not cold and not round then they are green.
Dave is quiet.