Task: Text to Code
Input (English): Step 1: For each row in operate_company table, find the corresponding rows in flight table.
Step 2: find without repetition Type of the results of step 1 whose Velocity less than or equals 200
Output (English): SELECT DISTINCT T1.Type FROM operate_company AS T1 JOIN flight AS T2 ON T1.id = T2.company_id WHERE T2.Velocity < = 200