What is the template type descriptions for template type code "AD".
CREATE TABLE Ref_template_types (template_type_description VARCHAR, template_type_code VARCHAR)
SELECT template_type_description FROM Ref_template_types WHERE template_type_code = "AD"
### Context: CREATE TABLE Ref_template_types (template_type_description VARCHAR, template_type_code VARCHAR) ### Question: What is the template type descriptions for template type code "AD". ### Answer: SELECT template_type_description FROM Ref_template_types WHERE template_type_code = "AD"