CREATE TABLE table_615 ("English Name" TEXT, "Simplified" TEXT, "Traditional" TEXT, "Pinyin" TEXT, "Area" FLOAT, "Population" FLOAT, "Density" FLOAT)

What is the capital of the district who's simplified name is ?
SELECT COUNT("Pinyin") FROM table_615 WHERE "Simplified" = '信州区'
SELECT COUNT("Pinyin") FROM "table_615" WHERE "Simplified" = '信州区'