Text: On the second floor is a Verrocchio David (c.1471), for which his 19-year-old pupil Leonardo da Vinci is believed to have been the model.
Entailment: It's thought that he used his pupil, Leonardo da Vinci, as a model for Verrocchio David.
Contradiction: Verrocchio used himself as a model, using a mirror, in creation his statue of David.