Anchor: A man and a woman read a book while their friend has a drink.
Entailed: Two people are reading a book and a third is drinking something.
Contradiction: Three people play ring around the rosy.
Contradiction: By using CDs we are able to save enough money. 
Contradiction: A truck is being driven down the street.
Contradiction: I have never seen that point before.
Contradiction: Waterfalls are a part of the beautiful pool area.