CREATE TABLE table_30286 ("English word" TEXT, "Slovak" TEXT, "Czech" TEXT, "Rusyn" TEXT, "Ukrainian" TEXT, "Belarusian" TEXT, "Polish" TEXT, "Serbo-Croatian" TEXT, "Bulgarian" TEXT)

How many words are there in rusyn for the bulgarian word (kupuva)?
SELECT COUNT("Rusyn") FROM table_30286 WHERE "Bulgarian" = 'купува (kupuva)'
SELECT COUNT("Rusyn") FROM "table_30286" WHERE "Bulgarian" = 'купува (kupuva)'