Anchor: Adrin joined them as they descended and headed south.
Entailed: Adrin went with them.
Contradiction: Adrin stayed home.
Contradiction: You haver never been to any games, right?
Contradiction: A bunch of people have gone to the race.
Contradiction: Heroin users are not known to join the criminal world. 
Contradiction: I prefer doing it with other people, to doing it alone.