Anchor: A boy on a skateboard at a skate park.
Entailed: A boy enjoys his skateboard outside.
Contradiction: A girl roller skates down the road.
Contradiction: FGD is an emissions standard.
Contradiction: The carpet lifted, but barely
Contradiction: The failure to build a successful info-sharing system was the downfall of their members. 
Contradiction: The purpose of the Chen Family Institute was the promotion of arts and crafts.