Anchor: Greece took this opportunity to absorb the islands of the northern and eastern Aegean and to add Macedonia to its mainland territories.
Entailed: Greece could absorb the islands of the northern and eastern Aegean and took this opportunity.
Contradiction: Greece could absorb the islands of the northern and eastern Italy and took this opportunity.
Contradiction: The GAO is prohibited from providing any assistance to Congress.  
Contradiction: A dog jumps.
Contradiction: There is no hat
Contradiction: A man is playing guitar on a sidewalk.