Anchor: Several people standing around on a subway train.
Entailed: Group of people riding on the subway.
Contradiction: People on a boat in the middle of the ocean.
Contradiction: The dog is black
Contradiction: You can get a free down of Internet Explorer 4.0
Contradiction: The delivery of remounts was set for the moon. 
Contradiction: The Minamoto armies were based in the Kanto province.