 Create a SQL query to find the 5 most popular restaurants in a given city. 
 SELECT restaurant_name، COUNT (*) AS frequency
FROM restaurant_table
WHERE city = '<اسم المدينة المحددة>'
GROUP BY restaurant_name
ORDER BY frequency DESC
LIMIT 5;
 SELECT restaurant_name, COUNT(*) AS frequency 
FROM restaurant_table 
WHERE city = '<given city name>' 
GROUP BY restaurant_name 
ORDER BY frequency DESC 
LIMIT 5;
 أنشئ استعلام SQL للعثور على أكثر 5 مطاعم شعبية في مدينة محددة.