Anchor: Whether or not those trips did any good, or gave the wrong impression about how foreigners might influence American foreign policy, they obviously raised the question of who got to be on the plane--and how.
Entailed: The trips raised the question of who got to be on the plane. 
Contradiction: It didn't matter who got to be on the plane or how.
Contradiction: NIPA is not the best way to express national saving data.
Contradiction: A human cycling
Contradiction: The hikers are now at home, fast asleep.
Contradiction: A man with an umbrella is standing near a road.