Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_225098_4 ( vacator VARCHAR, district VARCHAR )

### Question ###
Who vacated the Pennsylvania 6th district?

### Accurate SQL ###

SELECT vacator FROM table_225098_4 WHERE district = "Pennsylvania 6th"