user: Question: How many players were drafted by the Philadelphia Flyers?
Columns: ['Pick #', 'Player', 'Position', 'Nationality', 'NHL team', 'College/junior/club team']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [203.0, 'Garth Hildebrand', 'Left Wing', 'Canada', 'Pittsburgh Penguins', 'Calgary Wranglers (WHL)']
SQL:

assistant: SELECT COUNT("Nationality") FROM "Table" WHERE "NHL team" = 'Philadelphia Flyers';