Name the date successor seated for pennsylvania 17th
CREATE TABLE table_225204_4 (
    date_successor_seated VARCHAR,
    district VARCHAR
)
SELECT date_successor_seated FROM table_225204_4 WHERE district = "Pennsylvania 17th"
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: Name the date successor seated for pennsylvania 17th ### Input: CREATE TABLE table_225204_4 (
    date_successor_seated VARCHAR,
    district VARCHAR
) ### Response: SELECT date_successor_seated FROM table_225204_4 WHERE district = "Pennsylvania 17th"