Anchor: Gambling lessons are taught by dealers to groups of novices, so no one feels pressured or out of place.
Entailed: Gambling lessons are taught by dealers.
Contradiction: They don't offer gambling lessons because they want you to lose.
Contradiction: Tow trucks have not changed at all over the years.
Contradiction: Four boys on a boat look out at the water.
Contradiction: Egypt enjoyed a stable state of influence in ancient times, never once losing its position of power on the international scale. 
Contradiction: Music is being played at a venue