Text: Their parents are happy admiring the geometric lawns, neat flower?­beds, and classical statuary, to which has recently been added a collection of modern and contemporary works by such artists as Rodin, Giacometti, Dubuffet, Henry Moore, and Roy Lichtenstein.
Entailment: Rodin, Giacometti, and Henry Moore were all artists.
Contradiction: Roy Lichtenstein had never publicly published his artwork.