Show names of shops that have more than one kind of device in stock.
SELECT T2.Shop_Name FROM stock AS T1 JOIN shop AS T2 ON T1.Shop_ID  =  T2.Shop_ID GROUP BY T1.Shop_ID HAVING COUNT(*)  >  1
SELECT T2.Shop_Name FROM stock AS T1 JOIN shop AS T2 ON T1.Shop_ID  =  T2.Shop_ID GROUP BY T1.Shop_ID HAVING COUNT(*)  >  1
[{'Shop_Name': 'Dinas Device'}, {'Shop_Name': 'Ferndale'}]