user: Question: What is the Nationality that shows 4 as the ranking?
Columns: ['Ranking', 'Nationality', 'Name', 'Games', 'Years']
Types: ['real', 'text', 'text', 'real', 'text']
Sample row: [1.0, 'Spain', 'Xavi Category:Articles with hCards', 833.0, '1997–']
SQL:

assistant: SELECT "Nationality" FROM "Table" WHERE "Ranking" = 4.0;