Anchor: The man in the blue helmet is on a bike.
Entailed: The man is on a bike
Contradiction: The man in thered helmet is on a bike.
Contradiction: A young girl is playing soccer.
Contradiction: It's interesting but I doubt problems in Mexico can be solved using semantics. 
Contradiction: A girls eats paste.
Contradiction: A group of people watch as a crew works on a road at night.