user: Question: When North American record is the world record who is the denis nizhegorodov ( rus )?
Columns: ['World record', 'Denis Nizhegorodov ( RUS )', '3:34:14', 'Cheboksary , Russia', '11 May 2008']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Championship record', 'Robert Korzeniowski ( POL )', '3:36:03', 'Paris , France', '27 August 2003']
SQL:

assistant: SELECT "Denis Nizhegorodov ( RUS )" FROM "Table" WHERE "World record" = 'North American record';