Anchor: A man is steering a ship with a long pole along a tree-lined river.
Entailed: A boat goes down a river.
Contradiction: A fellow sails on a glassy lake.
Contradiction: The boy is clean.
Contradiction: The wheelbarrow has at least one wheel.
Contradiction: "No, they don't do that, Cynthia." I said. 
Contradiction: The woman was shopping at the supermarket.