[See pp. 62, 3]
Taking "nations" as Universe; x="civilised"; y="warlike";
13. No uncivilised nation is warlike.
14. All unwarlike nations are uncivilised.
15. Some nations are unwarlike.
16. All warlike nations are civilised, and all civilised nations are warlike.
17. No nation is uncivilised.
__________
Taking "crocodiles" as Universe; x="hungry"; and y="amiable";
18. All hungry crocodiles are unamiable.