A: Tatoeba, hisyo-ga SYATYOO-NI-WA i-ru-kedo HUKUSYATYOO -NI-WA i-nai-ndayo.
for example secretary-nom president-dat-WA exist-but vice-president-dat -dat-WA exist-neg-cop-particle
For instance, the president has a secretary, but the vice president doesn't.