Anchor: A man is giving his daughter a ride on a sledge with his motorcycle.
Entailed: The little girl is spending time with her dad.
Contradiction: The man and his daughter are skydiving from the plane right now.
Contradiction: The girl walked passed the man without any mind. 
Contradiction: A young man with a backpack walks down the street.
Contradiction: There are three men wearing hats.
Contradiction: Two prospective cohort groups have been the basis for most study.