Text: We nod to the idea of value-subtraction whenever we fall back on Horace's phrase about laboring to bring forth a mouse, or lament the forests felled to make possible a terrible book, or recollect an experience of working by committee.
Entailment: We agree with the idea of value-subtraction when we complain about trees being cut down to make bad books.
Contradiction: We never agree with the idea of value-subtraction.