Write SQL query to solve given problem: How many people have won at least 3 awards?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T1.person_id) FROM Person AS T1 INNER JOIN Award AS T2 ON T1.person_id = T2.person_id WHERE T2.result = 'Winner' GROUP BY T1.person_id HAVING COUNT(T2.award_id) >= 3