Anchor: But, by the time I had reached the top of the stairs, he was out of sight. 
Entailed: But by the time I got upstairs, he was gone.
Contradiction: He was still standing upstairs by the time I got there.
Contradiction: I've grown strawberries plenty of times.
Contradiction: A lady has her eyes open.
Contradiction: A child in a red shirt is eating a burger.
Contradiction: The original construction had been destroyed in a fire in the 14th century.