instruction: what are the event details of the services that have the type code 'Marriage', and count them by a bar chart, show in descending by the Y please.
response: SELECT Event_Details, COUNT(Event_Details) FROM Events AS T1 JOIN Services AS T2 ON T1.Service_ID = T2.Service_ID WHERE T2.Service_Type_Code = 'Marriage' GROUP BY Event_Details ORDER BY COUNT(Event_Details) DESC