Write SQL query to solve given problem: Among all the tweets that are reshared, how many of them are posted by a user in Buenos Aires?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T1.TweetID) FROM twitter AS T1 INNER JOIN location AS T2 ON T2.LocationID = T1.LocationID WHERE T2.City = 'Buenos Aires' AND T1.IsReshare = 'TRUE'