Anchor: A person is taking a walk on a rocky trail.
Entailed: Someone is taking a walk on a rocky trail.
Contradiction: A person is asleep on the trail
Contradiction: The mists here don't have any sudden descents so a guide is never necessary.
Contradiction: The man is near a table.
Contradiction: The things going on in Israel do not faze me.
Contradiction: A man hitting a tennis ball.