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_4 (enrollment VARCHAR, ihsaa_class VARCHAR, primary_conference VARCHAR, county VARCHAR)
  ### Question:
  Which Enrollment has a Primary Conference of mid-hoosier, and a County of 16 decatur, and an IHSAA Class of aa?
  ### Answer:
  SELECT enrollment FROM table_name_4 WHERE primary_conference = "mid-hoosier" AND county = "16 decatur" AND ihsaa_class = "aa"