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