Anchor: Damn! he observed, and this time succeeded in sitting up.
Entailed: He'd had previous failed attempts at sitting up.
Contradiction: He'd easily sat up the first time he attempted to.
Contradiction: He hates to watch television so spending time with Emily comes easily to him. 
Contradiction: People are working.
Contradiction: A surfer doesn't have his surfboard.
Contradiction: A man is wearing a shirt.