Anchor: A small boy in a bathrobe is sitting in a metal chair.
Entailed: A boy in a bathrobe.
Contradiction: A naked boy in a metal chair.
Contradiction: He tried to force the lock with a hammer but it would not budge.
Contradiction: People should express through non sexual ways. 
Contradiction: The boy in green shorts jumps into the pool.
Contradiction: The dog runs after a ball.