-- Database schema
| event : Event_ID [ INT ] primary_key , Date [ TEXT ] , Venue [ TEXT ] , Name [ TEXT ] , Event_Attendance [ INT ] | journalist : journalist_ID [ INT ] primary_key , Name [ TEXT ] , Nationality [ TEXT ] , Age [ TEXT ] , Years_working [ INT ] | news_report : journalist_ID [ INT ] primary_key news_report.journalist_ID = journalist.journalist_ID , Event_ID [ INT ] news_report.Event_ID = event.Event_ID , Work_Type [ TEXT ] |
-- -- Show the most common nationality for journalists.

SELECT Nationality FROM journalist GROUP BY Nationality ORDER BY COUNT(*) DESC LIMIT 1;