What is one theme ,or central idea, of "two kinds"?

How can the passage best be revised to eliminate logical fallacies and improve clarity

Read this sentence from "the wife's lament

Writers try to let us know what is central to their writing. when we notice words such as "meanwhile," "afterward," "before," or "previously," an author is letting us know the order in which events happen. a paragraph that mostly uses these key words is arranged in what structural form?