Anchor: Pedestrians walk on a sidewalk next to a grassy, wooded field.
Entailed: Some people are on the sidewalk.
Contradiction: Some people are running on a trail.
Contradiction: Kentucky is not relevant.
Contradiction: Price or actual availability might limit the size of the crane you can get; in this case, you would have to change the construction plan so that the sizes of pieces match the capability of the crane. 
Contradiction: Harrison Ford is blameless.
Contradiction: Warhol's Skull reads as a premonition of AIDS