Anchor: that's right that's right then one person doesn't know the other person down the line
Entailed: Yup, that's correct and then someone doesn't know someone else. 
Contradiction: That's not right, two people don't know that the frogs are singing. 
Contradiction: I want to do more.
Contradiction: A group of males play polo.
Contradiction: Two women are sitting at home.
Contradiction: You can contact the information line for more details.