Anchor: A teacher helping a student at a computer station.
Entailed: The teacher is near the student.
Contradiction: The student is alone in his bedroom.
Contradiction: The New York Yankees are playing the Tampa Bay Rays at the Tropicana Dome.
Contradiction: Hilary needs to get support from minorities. 
Contradiction: If you're heading from Four Courts you should turn south t get to St. Michan's Church.
Contradiction: OSHA gives authority to this action.