Anne is young. Bob is red. Charlie is cold. Charlie is green. Charlie is quiet. Charlie is red. Charlie is round. Fiona is cold. Fiona is green. Fiona is quiet. Fiona is red. If something is red then it is green. If something is round then it is white. If something is green and white then it is cold. Young, green things are round. If something is young then it is red. If something is not round then it is green.
Bob is not white.