Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_68 (social_ao VARCHAR, president VARCHAR)
### Question:
What Social AO has a President of harm van leeuwen?
### Answer:
SELECT social_ao FROM table_name_68 WHERE president = "harm van leeuwen"