Anchor: A poor woman in a shawl is digging for rocks.
Entailed: A woman is looking for something.
Contradiction: A woman is throwing rocks in the river.
Contradiction: The children are standing on their tip toes looking for a book in the library.
Contradiction: Reductions in Human Health Symptoms and Risk have placed values. 
Contradiction: The road was soft and squishy beneath them. 
Contradiction: The executive participates in activities that will help the organization.