Anchor: It's a good idea to take a jersey (sweater)and something to drink.
Entailed: It's a good idea to bring along a sweater and something to drink.
Contradiction: You won't need to take a sweater or liquids to drink with you. 
Contradiction: The student eat lunch.
Contradiction: That is what I'm trying to say, I agree with you.
Contradiction: The man is riding his bicycle around the neighborhood
Contradiction: The helicopter moved lower over the terrain.