Anchor: A man walking down a street with bikes parked on the sidewalk.
Entailed: There are bikes on the sidewalk where a person is walking.
Contradiction: A man is in his office thinking about his bike.
Contradiction: She was sleeping when I arrived--alone, and quiet in the dim twilight of the evening.
Contradiction: The boy is outside.
Contradiction: the kid is playing basketball
Contradiction: There are several ways that the cost of universal service can be measured.