how many winning team with circuit being road america
CREATE TABLE table_19463 (
    "Rnd" real,
    "Race Name" text,
    "Circuit" text,
    "City/Location" text,
    "Date" text,
    "Pole position" text,
    "Fastest lap" text,
    "Winning driver" text,
    "Winning team" text,
    "Report" text
)
SELECT COUNT("Winning team") FROM table_19463 WHERE "Circuit" = 'Road America'
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: how many winning team with circuit being road america ### Input: CREATE TABLE table_19463 (
    "Rnd" real,
    "Race Name" text,
    "Circuit" text,
    "City/Location" text,
    "Date" text,
    "Pole position" text,
    "Fastest lap" text,
    "Winning driver" text,
    "Winning team" text,
    "Report" text
) ### Response: SELECT COUNT("Winning team") FROM table_19463 WHERE "Circuit" = 'Road America'