What is the total number of lanes used for races with winners from Austria?
CREATE TABLE table_8939 (
    "Heat" real,
    "Lane" real,
    "Name" text,
    "Country" text,
    "Mark" text
)
SELECT COUNT("Lane") FROM table_8939 WHERE "Country" = 'austria'
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 total number of lanes used for races with winners from Austria? ### Input: CREATE TABLE table_8939 (
    "Heat" real,
    "Lane" real,
    "Name" text,
    "Country" text,
    "Mark" text
) ### Response: SELECT COUNT("Lane") FROM table_8939 WHERE "Country" = 'austria'