(The analogy is imperfect, because there's no fixed line of demarcation between fiction and nonfiction, only a broad gray field.)
There is definitive proof that the analogy is meant as nonfiction.
mnli hypothesis: There is definitive proof that the analogy is meant as nonfiction. premise: (The analogy is imperfect, because there's no fixed line of demarcation between fiction and nonfiction, only a broad gray field.)