Anne is blue. Anne is cold. Anne is round. Anne is smart. Anne is young. Charlie is blue. Charlie is cold. Charlie is rough. Dave is blue. Dave is not rough. Dave is round. Dave is young. Erin is blue. Erin is quiet. Erin is not rough. Erin is round. Quiet, rough people are young. Cold people are round. If Dave is not smart then Dave is young.
Erin is not young.