How many races involve incumbent Pat Cannon?
CREATE TABLE table_18592 (
    "District" text,
    "Incumbent" text,
    "Party" text,
    "First elected" real,
    "Result" text,
    "Candidates" text
)
SELECT COUNT("Result") FROM table_18592 WHERE "Incumbent" = 'Pat Cannon'
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 races involve incumbent Pat Cannon? ### Input: CREATE TABLE table_18592 (
    "District" text,
    "Incumbent" text,
    "Party" text,
    "First elected" real,
    "Result" text,
    "Candidates" text
) ### Response: SELECT COUNT("Result") FROM table_18592 WHERE "Incumbent" = 'Pat Cannon'