Anchor: An athlete tests his skills and stamina by jumping onto boxes out near the track field.
Entailed: The athlete is jumping.
Contradiction: An athlete refuses to eat broccoli.
Contradiction: A brother and sister are talking together on a couch.
Contradiction: Netscape provided Mr. Bork with his argument.
Contradiction: Varanasi is in a place all of its own, secluded from any tributaries.
Contradiction: He has good balance.