Anchor: A man on a snowboard travels downhill towards the camera.
Entailed: A man is snowboarding.
Contradiction: A woman on a snowboard is going towards a camera.
Contradiction: A woman is on skis.
Contradiction: A man riding some skis approaches downhill towards the camera.
Contradiction: A man has a skateboard.
Contradiction: A man without a snowboard is hiking in the snow.