Anchor: A white dog running on snow.
Entailed: A dog running in snow.
Contradiction: The black dog is sleeping.
Contradiction: There are three men sitting.
Contradiction: If you were a white man, then you were allowed to vote in most of the states by the 1830's.
Contradiction: The Palestrina choir is not well regarded, and draws sparse crowds.
Contradiction: She didn't come back until after six because she went shopping and had tea.