Anchor: A professor teaches a group of mixed older students in a classroom.
Entailed: The professor and the students are all indoors.
Contradiction: Two goldfish are riding bikes in a giant pile of mashed potatoes.
Contradiction: A woman drinks a shake.
Contradiction: I've talked about weather and about going camping with someone
Contradiction: The board president made it clear that we can keep doing it for $20. 
Contradiction: Lessons are taught in English and Chinese.