Anchor: He ran for Congress from Massachusetts and, revitalized, served for 18 years--notably helping to overturn the shameful gag rule that forbade the reading of anti-slavery petitions on the floor of the House.
Entailed: During his 18 years of service, he worked on gag rules enacted on the floor of the House.
Contradiction: He never ran for congress at all.
Contradiction: The people are walking through a park with no trees
Contradiction: a girl walking
Contradiction: A man is driving a car around the city.
Contradiction: How do other studies match up to this case study?