What Public Institution is in Black River Falls?
CREATE TABLE table_6870 (
    "Institution" text,
    "Location" text,
    "Affiliation" text,
    "Enrollment" real,
    "Mascot" text,
    "Colors" text
)
SELECT "Institution" FROM table_6870 WHERE "Affiliation" = 'public' AND "Location" = 'black river falls'
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 Public Institution is in Black River Falls? ### Input: CREATE TABLE table_6870 (
    "Institution" text,
    "Location" text,
    "Affiliation" text,
    "Enrollment" real,
    "Mascot" text,
    "Colors" text
) ### Response: SELECT "Institution" FROM table_6870 WHERE "Affiliation" = 'public' AND "Location" = 'black river falls'