อังกฤษมีกี่ลีก?ไม่จำเป็นต้องใช้ตารางทั้งหมด
How many leagues are there in England?It is not neccessary to use all the tables.
 League:  (country_id [ VARCHAR) ]
SELECT COUNT(*) FROM Country AS T1 JOIN League AS T2 ON T1.id = T2.country_id WHERE T1.name = "England"