Anchor: A group of boys exploring the seaside.
Entailed: A group of boys are walking on a beach.
Contradiction: A group of boys play on a mountainside.
Contradiction: Matinees are much more expensive. 
Contradiction: They need to reduce pollution from three main sources.
Contradiction: A significantly detailed analysis was carried out because the EPA warned of an expensive burden on small entities.
Contradiction: A vendor pushing a cart