How many candidates ran in the race where the incumbent is J. L. Pilcher?
CREATE TABLE table_18477 (
    "District" text,
    "Incumbent" text,
    "Party" text,
    "First elected" real,
    "Result" text,
    "Candidates" text
)
SELECT COUNT("Candidates") FROM table_18477 WHERE "Incumbent" = 'J. L. Pilcher'
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 candidates ran in the race where the incumbent is J. L. Pilcher? ### Input: CREATE TABLE table_18477 (
    "District" text,
    "Incumbent" text,
    "Party" text,
    "First elected" real,
    "Result" text,
    "Candidates" text
) ### Response: SELECT COUNT("Candidates") FROM table_18477 WHERE "Incumbent" = 'J. L. Pilcher'