Anchor: A white and brown dog, mid-leap, in a park.
Entailed: A dog is leaping in the park, he is white and brown.
Contradiction: The dog is laying down in the park.
Contradiction: Third Class Mail and Standard A mail are two completely different types of mail.
Contradiction: He bought some land on one of the San Juan Islands.  
Contradiction: man at work
Contradiction: A kid is playing in the park.