Anchor: Sipping the coffee, he allowed himself the luxury of not doing any thinking at all.
Entailed: He didn't think as he sipped the coffee. 
Contradiction: He thought about everything as he drank the coffee. 
Contradiction: There are exceptions that are not heartening.
Contradiction: The HHS extended the comment period in 1996.
Contradiction: Marco Polo never traveled to the far east but instead explored the west.
Contradiction: A bus drives by a blond woman wearing black hat and pants.