Anchor: A man with a crutch is sleeping on a bench.
Entailed: A man with a crutch is sleeping.
Contradiction: The women was sitting on a bench.
Contradiction: Case studies can estimate effects of variables. 
Contradiction: There are some steps with the number five painted on them.
Contradiction: Federal agencies didn't spend anything at all in 6 years on information technology.
Contradiction: I went to get the sticker renewed.