user: Question: How many positions does the draft pick whose nationality is Czech Republic play?
Columns: ['Pick', 'Player', 'Position', 'Nationality', 'NHL team', 'College/junior/club team']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Chris Phillips', 'Defence', 'Canada', 'Ottawa Senators', 'Prince Albert Raiders ( WHL )']
SQL:

assistant: SELECT COUNT("Position") FROM "Table" WHERE "Nationality" = 'Czech Republic';