Anchor: A boxer lands a blow in his competitors side in the boxing ring as the crowd watches with attentiveness.
Entailed: A crowd of people watch a boxing match in progress.
Contradiction: A single person watches the ongoing boxing match with little interest.
Contradiction: boy eats hot dog
Contradiction: A dog is running with a stick.
Contradiction: There aren't any station houses. 
Contradiction: Karate students working to hone their skills.