Anchor: A group of people hike up a snow covered mountainside.
Entailed: A group of people are hiking up a snow covered mountainside.
Contradiction: A group of people are sliding down the mountainside.
Contradiction: I would look into that because it might be able to benefit the youth greatly. 
Contradiction: The poison was created by a master of chemistry.
Contradiction: The buffalo roams free on the plains, unencumbered by the designs of humans.
Contradiction: People are on their knees.