Anchor: The biker is riding through a grassy plain.
Entailed: A biker is riding outdoors.
Contradiction: A biker is riding through a city.
Contradiction: Travel to the top of the hill to reach the Museum of Jaffa Antiquities.
Contradiction: The woman has light hair
Contradiction: My economist friend refuses to tell me if the program will pay off. 
Contradiction: Many organizations had to downsize their staff without proper planning because of competitive pressures.