Who's the incumbent of Indiana 4 district?
CREATE TABLE table_1341843_15 (
    incumbent VARCHAR,
    district VARCHAR
)
SELECT incumbent FROM table_1341843_15 WHERE district = "Indiana 4"
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's the incumbent of Indiana 4 district? ### Input: CREATE TABLE table_1341843_15 (
    incumbent VARCHAR,
    district VARCHAR
) ### Response: SELECT incumbent FROM table_1341843_15 WHERE district = "Indiana 4"