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_30 ( sub_parish__sogn_ VARCHAR, parish__prestegjeld_ VARCHAR, church_name VARCHAR )

### Question ###
Which Sub-Parish (Sogn) is in the Parish (Prestegjeld) of hafslo parish and has a church called Hafslo Kyrkje?

### Accurate SQL ###

SELECT sub_parish__sogn_ FROM table_name_30 WHERE parish__prestegjeld_ = "hafslo parish" AND church_name = "hafslo kyrkje"