CREATE TABLE table_15992 ("Case/Suffix" CLOB, "we two" CLOB, "you and I" CLOB, "you two" CLOB, "them two  ( the two ) " CLOB, "who-two" CLOB)

What is who-two where you and i is ng ban?
SELECT "who-two" FROM table_15992 WHERE "you and I" = 'ngœban'
SELECT "who-two" FROM "table_15992" WHERE "you and I" = 'ngœban'