Who were the incumbent(s) in the election featuring john murray (dr) 50.4% george denison (dr) 49.6% with a result of a retired democratic-republican hold?
CREATE TABLE table_3609 (
    "District" text,
    "Incumbent" text,
    "Party" text,
    "First elected" text,
    "Result" text,
    "Candidates" text
)
SELECT "Incumbent" FROM table_3609 WHERE "Candidates" = 'John Murray (DR) 50.4% George Denison (DR) 49.6%' AND "Result" = 'Retired Democratic-Republican hold'
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: Who were the incumbent(s) in the election featuring john murray (dr) 50.4% george denison (dr) 49.6% with a result of a retired democratic-republican hold? ### Input: CREATE TABLE table_3609 (
    "District" text,
    "Incumbent" text,
    "Party" text,
    "First elected" text,
    "Result" text,
    "Candidates" text
) ### Response: SELECT "Incumbent" FROM table_3609 WHERE "Candidates" = 'John Murray (DR) 50.4% George Denison (DR) 49.6%' AND "Result" = 'Retired Democratic-Republican hold'