Task: Text to Code
Input (English): Step 1: For each row in Parts table, find the corresponding rows in Part_Faults table.
Step 2: find the number of rows of each value of part_fault_id in the results of step 1.
Step 3: find part_name of step 1 results with smallest value in the results of step 2
Output (English): SELECT T1.part_name FROM Parts AS T1 JOIN Part_Faults AS T2 ON T1.part_id = T2.part_id GROUP BY T2.part_fault_id ORDER BY Count ( * ) Asc LIMIT 1