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_30011_2 ( prefix_class VARCHAR, equivalent VARCHAR )

### Question ###
What is every prefix class for the equivalent of NTE160?

### Accurate SQL ###

SELECT prefix_class FROM table_30011_2 WHERE equivalent = "NTE160"