text: 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_18 (userpics_free VARCHAR, name VARCHAR, registration VARCHAR, yearly_cost_for_paid_account VARCHAR)
  ### Question:
  What is Userpics Free, when Registration is Open, when Yearly Cost For Paid Account is "unknown", and when Name is Kraslan?
  ### Answer:
  SELECT userpics_free FROM table_name_18 WHERE registration = "open" AND yearly_cost_for_paid_account = "unknown" AND name = "kraslan"