Anchor: An adult riding a bike on a beach with many visible vapour trails in the sky.
Entailed: A person is riding a bike outdoors.
Contradiction: A man is riding his skateboard on the boardwalk.
Contradiction: I hope you will perform badly.
Contradiction: The boy get some help from an adult while swinging.
Contradiction: A man is settling human remains into a tomb
Contradiction: Your mouth feels clean because it must have a legitimate bite.