The president, peter williamson, had how many home grounds?
CREATE TABLE table_189 (
    "Team" text,
    "Head Coach" text,
    "President" text,
    "Home Ground" text,
    "Location" text,
    "Founded" real,
    "Website" text
)
SELECT COUNT("Home Ground") FROM table_189 WHERE "President" = 'Peter Williamson'
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: The president, peter williamson, had how many home grounds? ### Input: CREATE TABLE table_189 (
    "Team" text,
    "Head Coach" text,
    "President" text,
    "Home Ground" text,
    "Location" text,
    "Founded" real,
    "Website" text
) ### Response: SELECT COUNT("Home Ground") FROM table_189 WHERE "President" = 'Peter Williamson'