Anchor:  From its back, a ladder of some flexible material snaked down and men began descending.
Entailed: From the rear, a ladder led down and men started descending.
Contradiction: A ladder snaked down from the rear, but no one came down it.
Contradiction: The models presented here simply can't be transformed into traditional models.
Contradiction: A mann rides a bike.
Contradiction: A man is relaxing on an island.
Contradiction: The baseball player is a man.