Anchor: Parents send their kids to costly summer clinics and hire professional coaches.
Entailed: Parent enroll their kids in expensive summer clinics and hire professional instructors.
Contradiction: Parents register their kids for cheap summer clinics, and don't bother getting professional instructors.
Contradiction: He left the country before we could put him in jail.
Contradiction: There were no footsteps to be seen when they wandered around the house.  
Contradiction: The Real Jardin Botanico was fouded 3 centuries ago.
Contradiction: Two mean are performing on stage.