Anchor: a man gives another man a piggyback ride.
Entailed: A man is on another man's back.
Contradiction: A woman gives her child a piggy back ride.
Contradiction: Project activities and project acquisition are unrelated activities and handled by separate departments.
Contradiction: Coal Technology that focuses on environmentally friendly tactics.
Contradiction: The singer is at the bar, taking a break.
Contradiction: A boy is putting on his shoe.