Bob is green. Bob is round. Dave is quiet. Dave is smart. Erin is cold. Erin is round. Fiona is cold. Fiona is green. Fiona is white. Fiona is young. All round, smart things are white. If Erin is quiet then Erin is white. If something is young and smart then it is cold. Young things are cold. Cold things are green. All green things are smart. If something is round and white then it is green. If something is white and green then it is young. If something is cold then it is quiet.
Fiona is not quiet.