+----------+------+-------+---------+--------+
| :country | :sid | :name | :status | :city  |
+----------+------+-------+---------+--------+
| Belgium  | S1   | Smith |      20 | London |
| Belgium  | S2   | Jones |      10 | Paris  |
| Belgium  | S3   | Blake |      30 | Paris  |
| Belgium  | S4   | Clark |      20 | London |
| Belgium  | S5   | Adams |      30 | Athens |
+----------+------+-------+---------+--------+