Black Sea Euroregion

Columns: City | Population | Country
Varna | 343,486 | Bulgaria | Constanţa | 310,471 | Romania | Burgas | 200.264 | Bulgaria | Tulcea | 92,379 | Romania | Dobrich | 89,472 | Bulgaria | Medgidia | 44,850 | Romania | Mangalia | 41,153 | Romania

Example questions:
What is the population of the third largest city in Bulgaria , which is also a Black Sea Euroregion ? | What is the population of the Black Sea Euroregion town located on the right bank of the Danube ? | What is the population of the Black Sea Euroregion town with the historical name Kara Koyum ? | What is the population of the Black Sea Euroregion town founded around 600 BC ?

Answers:
343,486 | 11,198 | 34,669 | 310,471