Her paper is not limited to a comparison of lexical structures but extends to a global analysis of grammatical categories and their use. Her analysis enables us to identify key functional differences between source and target languages. Your language is eloquent but none of it makes sense to me. What is a "grammatical category"? How is it different from a "lexical structure", whatever that is. What is meant by a "functional difference" between two languages? Difference of what? Source for what? Target for what?