Anchor: Many economists agree that spending both on education and on general research and development (R and D) enhances future economic capacity and, conceptually, should be considered investment.
Entailed: Economists agree that education and research spending is an investment.
Contradiction: Economists agree that education and research spending is an waste.
Contradiction: Staying inside and listening to the TV. 
Contradiction: The boy is hoarding the bottles.
Contradiction: the man is blond
Contradiction: I have a mule that can smell Apaches when they're still two miles away.