Anchor: If they don't, the government may chose to act again in order to fill any related voids.
Entailed: The government can choose not to act to fill voids 
Contradiction: The government must act to fill the voids
Contradiction: My sister-in-law lives in Savannah.
Contradiction: Two swans are in the water.
Contradiction: The woman and her dog were walking in the park
Contradiction: Charlie Brown has a Bad dream about a woman.