Task: Text to Code
Input (English): SQL: SELECT City FROM city WHERE Regional_Population > 10000000 OR Regional_Population < 5000000
Feedback: Replace 5000000 with 8000000 and 10000000 with 5000000.
Output (English): SELECT city FROM city WHERE regional_population  >  10000000 UNION SELECT city FROM city WHERE regional_population  <  5000000