Anchor: A group of musicians performing in the street.
Entailed: The musicians are playing in the street.
Contradiction: The musicians are performing at Carnegie Hall.
Contradiction: The most well-known vineyards are never open to the public. 
Contradiction: A kid is riding a bike
Contradiction: Learning curves can only provide a two or three percent productivity improvement.
Contradiction: A woman sings while a makeshift boat floats down the river.