 ;							   
 
 -- 4.3
-INSERT INTO сlass_to_rx_descendant
+INSERT INTO class_to_rx_descendant
 SELECT DISTINCT substring(concept_code_1, '\w+'),
                 class_name,
                 c.concept_id,

;

-- 4.8
INSERT INTO сlass_to_rx_descendant
SELECT DISTINCT substring(concept_code_1, '\w+'),
                class_name,
                c.concept_id,

-- hardcoded combinations							   

-- 4.1
DROP TABLE IF EXISTS class_to_rx_descendant;
CREATE TABLE class_to_rx_descendant
AS
SELECT DISTINCT substring(concept_code_1, '\w+') AS class_code,
                class_name,
