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_69 ( class VARCHAR, frequency_mhz VARCHAR, call_sign VARCHAR )

### Question ###
Frequency MHz smaller than 95.3, and a Call sign of k234ag is what class?

### Accurate SQL ###

SELECT class FROM table_name_69 WHERE frequency_mhz < 95.3 AND call_sign = "k234ag"