Task: Text to Code
Input (English): Step 1: For each row in election table, find corresponding rows in county table and in party table.
Step 2: find Comptroller of the results of step 1 whose Population equals 1
Output (English): SELECT T2.Comptroller FROM county AS T1 JOIN party AS T2 JOIN election AS T3 ON T1.County_Id = T3.District AND T3.Party = T2.Party_ID WHERE T1.Population = 1