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_name_25 (episode VARCHAR, year VARCHAR, nominee_s_ VARCHAR)

### Question ###
What episode after 1998 had John Wells as the nominee?

### Accurate SQL ###

SELECT episode FROM table_name_25 WHERE year > 1998 AND nominee_s_ = "john wells"