What is the capital of the district who's simplified name is ?
CREATE TABLE table_615 (
    "English Name" text,
    "Simplified" text,
    "Traditional" text,
    "Pinyin" text,
    "Area" real,
    "Population" real,
    "Density" real
)
SELECT COUNT("Pinyin") FROM table_615 WHERE "Simplified" = '信州区'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the capital of the district who's simplified name is ? ### Input: CREATE TABLE table_615 (
    "English Name" text,
    "Simplified" text,
    "Traditional" text,
    "Pinyin" text,
    "Area" real,
    "Population" real,
    "Density" real
) ### Response: SELECT COUNT("Pinyin") FROM table_615 WHERE "Simplified" = '信州区'