Anchor: A black dog plays with a bit of ice by the frozen river.
Entailed: A black dog by a river.
Contradiction: A black dog eating some ice because he has a toothache and his mom told him to try numbing it.
Contradiction: No government officials meet in the Palais-Bourbon.  
Contradiction: He said good morning and raised his hat, then walked away.
Contradiction: The museum just has paintings on display.
Contradiction: Chevy Chase is appearing.