Write SQL query to solve given problem: Among the routine inspections of Tiramisu Kitchen, how many of them have a score of over 70?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T2.business_id) FROM inspections AS T1 INNER JOIN businesses AS T2 ON T1.business_id = T2.business_id WHERE T2.name = 'Tiramisu Kitchen' AND T1.type = 'Routine - Unscheduled' AND T1.score > 70