### Instruction: Extract the names of the cities and rank them in alphabetical order?
### Input: The United Kingdom is a constitutional monarchy and parliamentary democracy. Its capital and largest city is London, the capital of England, a global city and financial centre with a population of over 14 million people. Edinburgh, Cardiff and Belfast are the national capitals of Scotland, Wales and Northern Ireland respectively.
### Response: The cities listed in alphabetical order are Belfast, Cardiff, Edinburgh and London.