His "doubts" are collected under five headings: vocabulary, phrases and collocations, grammatical constructions, clarity, and stylistic consistency, in each case setting literary quotations under scrutiny.
Collocation of a waste generator with a waste-to-ethanol plant can reduce the waste producer's operating cost, while creating a more-profitable ethanol production business.
By changing the collocation between two of the existing signifiers, and so changing their original relationship, the relative significance of each signifier can be considered.