Anchor: It costs virtually the same amount to produce, no matter how many people use it, and no matter how heavy the use.
Entailed: Something costs the same amount to produce regardless of consumption.
Contradiction: The more of the product the people consume, the higher the cost of producing it.
Contradiction: The three men in the band at the strip mall haven't started playing music.
Contradiction: Portuguese nationals stepped on land.
Contradiction: A female is reading a book about bridges.
Contradiction: The man has a walker