Anchor: A rock climber checks his rope before holding on to the next spot on the rock.
Entailed: A rock climber is climbing up some rocks.
Contradiction: The climber does not check his rope.
Contradiction: A man falls off a rock.
Contradiction: A rock climber is climbing without ropes.
Contradiction: The climber is swimming in the pond.
Contradiction: A rock climber took some time off and is enjoying a nice relaxing time in a hot tub.