Anchor: The agora-like Hall of Nactenabo (381 362 b.c. ) stands in front of the pylon.
Entailed: The Hall of Nactenabo is in front of the pylon.  
Contradiction: Nactenabo died in 300 b.c.
Contradiction: The Hall of Nactenabo is situated behind the pylon.  
Contradiction: The kids are playing a video game upstairs.
Contradiction: A woman is using her back as a carrier.
Contradiction: Encryption does nothing to ensure confidentiality.