Charlie is nice. Dave is smart. Fiona is quiet. Harry is blue. Harry is cold. Harry is green. Harry is quiet. Young, cold people are green. Quiet, cold people are green. Young people are smart. All quiet people are green. If someone is young and green then they are smart. If Fiona is cold then Fiona is young. If someone is green then they are nice. If Fiona is nice then Fiona is cold.
Charlie is not cold.