Anchor:  Before Dave could ask what he was to stop, Nema came rushing into the room.
Entailed: Nema ran into the room before Dave could ask what he was supposed to prevent.
Contradiction: Nema was nowhere to be seen as Dave asked what he was supposed to prevent.
Contradiction: The percentage of minorities in position of director dropped 100%.
Contradiction: The dining-car service on French trains is disappointing.
Contradiction: The female is sitting on the ice.
Contradiction: A crowd is gathered in a park.