Anchor: A graffiti artist paints over a poster on a brick wall.
Entailed: A graffiti artist paints a poster.
Contradiction: A man is taking his dog on a walk
Contradiction: A graffiti artist rips a poster at an art contest.
Contradiction: A person is putting up posters on a wall.
Contradiction: A singer draws on a window in a brick wall.
Contradiction: An artist is making a poster.