0. Example query: All cities in USA with a population greater than 1000000

1. Give the European cities with over 500,000 people.

2. List the 20 most populated cities in order from most to least populated

3. Which organizations have as members all the European countries with over 50 million people?

4. What are the airports in Europe?

5. List the countries in Europe and the number of airports they have.

6. List the provinces in Sweden ordered by area from largest to smallest.

7. List the countries that have mountains in the Karakorum mountains.