user: Question: Marcell Jansen of the nation GER has what for the type?
Columns: ['Nat.', 'Name', 'Type', 'Transfer window', 'Transfer fee']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['GER', 'Oliver Kahn', 'Career end', 'Summer', 'n/a']
SQL:

assistant: SELECT "Type" FROM "Table" WHERE "Nat." = 'GER' AND "Name" = 'Marcell Jansen';