I need four different articles about Riyadh city in Saudi Arabia. Each article must not exceed 500 words. The topics are as follows:
1- Riyadh city Tourism ( hotel growth, cultural sites, entertainment, shopping , transportation)
2- Riyadh city commerce, Finance.
3- Riyadh city people, community ( locals vs expats)
4- Riyadh city technology and growing economy.
Please make sure that each articles have "Riyadh" word repeated in different paragraphs as much as possible.