Anchor: The white dog has a gray Frisbee in its mouth.
Entailed: The dog is playing frisbee.
Contradiction: The blue dog has a green frisbee in its mouth.
Contradiction: I like to listen to the sound of my own voice. 
Contradiction: There is a model of Sylvester Stallone in the museum.
Contradiction: The Synagogue here was built back in 1965.
Contradiction: These include turning in reports to those whom data were collected from, use of several data collection methodologies, and using the audit trail.