Anchor: As they passed the third floor landing a young clerk came out of an office.
Entailed: A young clerk appeared from out of an office as they passed the third floor landing.
Contradiction: No one was around as they walked through the third floor landing.
Contradiction: The man is dancing
Contradiction: The man is performing.
Contradiction: A woman is taking medicine.
Contradiction: One organization's central group was important in acquiring a strong user authentication system.