Anchor: Two children sleeping in an unattended double stroller.
Entailed: Two children are sleeping
Contradiction: Two children are awake and crying in an unattended stroller
Contradiction: There are no cottonwood trees, or trees of any kind here. 
Contradiction: I use them when traveling.
Contradiction: We all knew what Thomas A. Balmer had gone through to give that speech and it wasn't pretty.
Contradiction: Key people have to have integrity for any system to work.