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_12 ( secretary VARCHAR, social_ao VARCHAR )

### Question ###
What Secretary has a Social AO of lieke de boer?

### Accurate SQL ###

SELECT secretary FROM table_name_12 WHERE social_ao = "lieke de boer"