Task: Text to Code
Input (English): SQL: SELECT characteristic_name FROM Characteristics GROUP BY characteristic_data_type ORDER BY Count ( * ) Desc LIMIT 1
Feedback: Replace characteristic data type , characteristics table with characteristic id , product characteristics in step 1.
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 ORDER BY count(*) DESC LIMIT 1