Anchor: But there was no easing of the pain that threatened to make him black out at any second.
Entailed: The pain was about to make him black out.
Contradiction: He was so relaxed he drifted off to sleep peacefully.
Contradiction: A boy is sitting in a boat with his family  on the ocean.
Contradiction: Environmental Economics Management journal
Contradiction: I didn't have my instructors home phone numbers and I couldn't go into their office.
Contradiction: A human standing.