user: Question: What is the home city when the stadium was Gradski stadion u Poljudu?
Columns: ['Team', 'Manager', 'Home city', 'Stadium', 'Capacity']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Cibalia', 'Davor Mladina', 'Vinkovci', 'Stadion HNK Cibalia', 9920.0]
SQL:

assistant: SELECT "Home city" FROM "Table" WHERE "Stadium" = 'Gradski stadion u Poljudu';