Anchor: A boy in a green shirt is riding his skateboard in a park while three boys watch.
Entailed: People are outdoors.
Contradiction: A group of boys are sitting in a library
Contradiction: The originals are still visible today.  
Contradiction: Portugal was flooded with refugees because of its neutrality.
Contradiction: There is no such person?
Contradiction: Pro per litigants had better access to the courts.