user: Question: Name the original name for the one from Bulgaria
Columns: ['Country', 'Film title used in nomination', 'Language', 'Original name', 'Director']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Algeria', 'Sandstorm', 'French', 'Vent de sable', 'Mohammed Lakhdar-Hamina']
SQL:

assistant: SELECT "Original name" FROM "Table" WHERE "Country" = 'Bulgaria';