Anchor: Three children are playing cricket in a field.
Entailed: The kids are playing cricket.
Contradiction: Three children play polo together in the field.
Contradiction: The only person to vote against impeachment was Mary Bono.
Contradiction: Their backs and sides are the best to be attacked. 
Contradiction: None of the windmills at Mar Menor work.
Contradiction: Our growing season is basically done but we might get some tomatoes in early October.