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 (province_of_silla VARCHAR, modern_equivalent VARCHAR)

### Question ###
WHat kind of Province of Silla has a Modern equivalent of pyeongan?

### Accurate SQL ###

SELECT province_of_silla FROM table_name_25 WHERE modern_equivalent = "pyeongan"