Write SQL query to solve given problem: For the player who scored 7 shorthanded goals in 1989, what's his dominant hand?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.shootCatch FROM Master AS T1 INNER JOIN Scoring AS T2 ON T1.playerID = T2.playerID WHERE T2.year = 1989 GROUP BY T2.playerID HAVING SUM(T2.SHG) = 7