เหตุการณ์สามเหตุการณ์ที่เกิดขึ้นบ่อยครั้งในเอาต์พุตจนถึงปี 2101 คืออะไร? ไม่จำเป็นต้องใช้ตารางทั้งหมด
what is the three event that is frequent in the output until 2101?It is not neccessary to use all the tables.
 prescriptions:  row_id [ number]  subject_id [ number]  hadm_id [ number]  startdate [ time]  enddate [ time]  drug [ text]  dose_val_rx [ text]  dose_unit_rx [ text]  route [ text] 
SELECT d_items.label FROM d_items WHERE d_items.itemid IN (SELECT t1.itemid FROM (SELECT outputevents.itemid, DENSE_RANK() OVER (ORDER BY COUNT(*) DESC) AS c1 FROM outputevents WHERE STRFTIME('%y', outputevents.charttime) <= '2101' GROUP BY outputevents.itemid) AS t1 WHERE t1.c1 <= 3)