Task: Text to Code
Input (English): Step 1: For each row in people table, find the corresponding rows in candidate table.
Step 2: find Name of the results of step 1 whose Unsure_rate less than 0.2
Output (English): SELECT T2.Name FROM candidate AS T1 JOIN people AS T2 ON T1.People_ID = T2.People_ID WHERE T1.Unsure_rate < 0.2