Anchor: We walked up to the great door of Styles, and at once the knowledge came to us that something was wrong. 
Entailed: When he arrived at the great door of Styles, he discovered that something was wrong
Contradiction: Nothing is went wrong at the door of Styles.
Contradiction: The stones the demon fell on were solid white. 
Contradiction: Some guy is in the woods.
Contradiction: a woman shoveling snow
Contradiction: A child and his pet are spending time outdoors.