how many revised hepburn when english is roman characters
CREATE TABLE table_26263954_1 (
    revised_hepburn VARCHAR,
    english VARCHAR
)
SELECT revised_hepburn FROM table_26263954_1 WHERE english = "Roman characters"
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 revised hepburn when english is roman characters ### Input: CREATE TABLE table_26263954_1 (
    revised_hepburn VARCHAR,
    english VARCHAR
) ### Response: SELECT revised_hepburn FROM table_26263954_1 WHERE english = "Roman characters"