Anchor: Two schoolgirls are talking to a woman.
Entailed: Two girls are talking to a woman.
Contradiction: The woman is their sister.
Contradiction: The diamonds and pearls were well protected in a place where no one could pick them up.  
Contradiction: A man is standing in front of a cookbook.
Contradiction: Two people buying used books.
Contradiction: They are not making that much money because the middle man takes like ninety percent of it.