Anchor: It was the most awful hour of my life. 
Entailed: That hour was the most terrible of my life.
Contradiction: That hour was just like any other and without much emotion. 
Contradiction: There are people eating dinner.
Contradiction: A man snowboards.
Contradiction: Requiring emissions to be reduced at specific sources reduces the overall level of pollution.
Contradiction: Chavez hid in a porta potty.