Anchor: As you turn to head up into the valley, look for a house on the left surrounded by shady trees.
Entailed: There is a house on the left up in the valley surrounded by shade trees.  
Contradiction: There are no houses on the left up in the valley.  
Contradiction: You won't find a house when you head up into the valley.
Contradiction: Everyone has the same ability to make themselves understood.
Contradiction: A woman is speaking to a crowd.
Contradiction: These guys hate tennis