Anchor: Free samples are not always given at the end of visits and the champagne houses may not be the cheapest places to buy champagne.
Entailed: The champagne houses are a more expensive way to purchase champagne. 
Contradiction: Champagne houses are the least expensive places to buy champagne.
Contradiction: The champagne houses are the cheapest place to find and buy your favorite champagne in the world.
Contradiction: A man walks behind the parade.
Contradiction: Native American groups are fighting for recognition of their holocaust.
Contradiction: There are no people around.