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_71 (ihsaa_class VARCHAR, county INTEGER)

### Question ###
What is the IHSAA class of the county that is less than 228?

### Accurate SQL ###

SELECT ihsaa_class FROM table_name_71 WHERE county < 228