user: Question: What nationality has a position of Left Wing, and a round greater than 4, with Mattia Baldi as the player?
Columns: ['Round', 'Player', 'Position', 'Nationality', 'College/Junior/Club Team']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Matt Higgins', 'Center', 'Canada', 'Moose Jaw Warriors (WHL)']
SQL:

assistant: SELECT "Nationality" FROM "Table" WHERE "Position" = 'Left Wing' AND "Round" > 4.0 AND "Player" = 'Mattia Baldi';