How many incumbents were the result of sanford bishop (d) 57% joseph mccormick (r) 43%?
CREATE TABLE table_29251 (
    "District" text,
    "Incumbent" text,
    "Party" text,
    "Elected" real,
    "Status" text,
    "Result" text
)
SELECT COUNT("Incumbent") FROM table_29251 WHERE "Result" = 'Sanford Bishop (D) 57% Joseph McCormick (R) 43%'
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 incumbents were the result of sanford bishop (d) 57% joseph mccormick (r) 43%? ### Input: CREATE TABLE table_29251 (
    "District" text,
    "Incumbent" text,
    "Party" text,
    "Elected" real,
    "Status" text,
    "Result" text
) ### Response: SELECT COUNT("Incumbent") FROM table_29251 WHERE "Result" = 'Sanford Bishop (D) 57% Joseph McCormick (R) 43%'