Anchor: People on bikes gathered at night.
Entailed: people riding bikes.
Contradiction: people riding on a bus.
Contradiction: There's no need for a reorientation if the goal is to get results that are consistent with the GRPA.
Contradiction: 1662 saw a wedding between Charles II and a Portuguese bride.
Contradiction: Ships carrying cats and turtles resided in the Persian gulf. 
Contradiction: The Soviets and the Poles became allies because of Hitler's invasion of the Soviet Union.