Bob is green. Charlie is big. Erin is big. Erin is blue. Erin is cold. Erin is nice. Fiona is nice. Cold people are nice. Green people are round. If Fiona is rough then Fiona is nice. If someone is round then they are blue. All green, big people are nice. Round people are cold. If someone is big and cold then they are round. If someone is rough then they are big.
Fiona is not blue.