Task: Text to Code
Input (English): SQL: SELECT characteristic_name FROM Characteristics GROUP BY characteristic_type_code HAVING Count ( * ) > = 2
Feedback: Need to make sure value of characters present in products are two or more .
Output (English): SELECT t3.characteristic_name FROM products AS t1 JOIN product_characteristics AS t2 ON t1.product_id  =  t2.product_id JOIN CHARACTERISTICS AS t3 ON t2.characteristic_id  =  t3.characteristic_id GROUP BY t3.characteristic_name HAVING count(*)  >= 2