Bob is big. Bob is rough. Bob is round. Erin is big. Erin is red. Erin is round. Fiona is big. Fiona is blue. Fiona is nice. Fiona is quiet. Fiona is red. Fiona is rough. All round, rough people are quiet. If Erin is quiet and Erin is blue then Erin is round. If Fiona is blue and Fiona is nice then Fiona is big. If someone is nice and red then they are big. All blue, nice people are red. Red, quiet people are round. All blue people are rough. If someone is nice and big then they are red.
Erin is not round.