Anchor: Hikers are walking down a grassy path on a hillside.
Entailed: Hikers are walking through the grass.
Contradiction: Hikers are relaxing at home before a hike.
Contradiction: Knocks on walls.
Contradiction: There were some Chinese made replacement valves that he was able to get.
Contradiction: People are riding mopeds in the park.
Contradiction: It's my opinion that the people are rising up.