Anchor: A janitor flashes a smile while he cleans a replica small building with a vacuum cleaner.
Entailed: janitor smiling while working
Contradiction: Janitor smiles while sleeping
Contradiction: A police car is chasing a black car.
Contradiction: By 2003, federal agencies are required to provide electronic forms, when possible.
Contradiction: It is a cost function that does not cost anything.
Contradiction: I live in Carrollton.