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_54 (class VARCHAR, call_sign VARCHAR, erp_w VARCHAR, frequency_mhz VARCHAR)

### Question ###
Which Class has a ERP W larger than 205, and a Frequency MHz smaller than 93.9, and a Call sign of k210cb?

### Accurate SQL ###

SELECT class FROM table_name_54 WHERE erp_w > 205 AND frequency_mhz < 93.9 AND call_sign = "k210cb"