Task: Text to Code
Input (English): Step 1: For each row in Accounts table, find the corresponding rows in Customers table.
Step 2: find the number of rows of each value of Accounts's customer_id in the results of step 1.
Step 3: find Accounts's customer_id, customer_first_name, customer_last_name of step 1 results with smallest value in the results of step 2
Output (English): SELECT T1.customer_id , T2.customer_first_name , T2.customer_last_name FROM Accounts AS T1 JOIN Customers AS T2 GROUP BY T1.customer_id ORDER BY Count ( * ) Asc LIMIT 1