Anchor: People in life jackets are on a boat that's moving through the water.
Entailed: People ride on a boat.
Contradiction: A boat in drydock is boarded and inspected.
Contradiction: A woman lost her rollerblades.
Contradiction: The best time to wander in the street is without many people.
Contradiction: A man is jumping a horse over a fence.
Contradiction: A man is not wearing anything on his chest.