Charlie is cold. Fiona is cold. Harry is rough. If someone is green and cold then they are big. If someone is green then they are cold. Smart people are big. If someone is smart then they are green. If Harry is not cold then Harry is round. If someone is quiet and not big then they are round. If Fiona is big and Fiona is not cold then Fiona is rough. If someone is smart and not round then they are rough.
Fiona is not green.