Anchor: Its principal treasure, though of contested provenance, is Leonardo da Vinci's luminous Portrait of a Musician (1485), unfinished but at the same time the best preserved of the master's few surviving works.
Entailed: Portrait of a Musician is one of the surviving works of Leonardo da Vinci.
Contradiction: Portrait of a Musician is a finished work done by Leonardo da Vinci.
Contradiction: It was not his privilege to make the choice regarding his men.
Contradiction: There are three dogs
Contradiction: Some children hold hands.
Contradiction: There is a group of people on a trolley.