Anchor: Four adults are sitting and playing a video game.
Entailed: The people are playing video games.
Contradiction: The adults are watching a movie.
Contradiction: February weekly standard. 
Contradiction: There are two frescoes by Simone Martini located in the Sala del Mappamondo.
Contradiction: I'm not worth even a measurable number of pounds a year to you. 
Contradiction: There were lots of different smells.