Anchor: two white dogs and one brown dog jumping through the dirt after a tennis ball.
Entailed: There are multiple dogs in the area
Contradiction: Both dogs are black
Contradiction: Martinique is the only island of the French West Indies that doesn't have poisonous snakes, so walking off the trails is safe. 
Contradiction: It has been hard to make plans for a weekend getaway.
Contradiction: The room is empty except for a small boy.
Contradiction: A couple of people standing near the street.