Anchor: Train due in three minutes.
Entailed: The train arrives in three minutes.
Contradiction: There is no train coming today.
Contradiction: Only the band of instrumental singers are allowed to perform in this area.
Contradiction: Tuppence was scared for the first time. 
Contradiction: Until that happens, other systems can relax the amount they do.
Contradiction: There are a number of performances including the classical genre.