In this task, you will be presented with a question in Dutch language, and you have to write the person names from the question if present. B denotes the first item of a phrase and an I any non-initial word. Phrase used for the person name - PER. There can be instances with no person name entity, then return 'None'.

Example Input: Dokter De Block heeft niets te maken met het Vlaams Blok , maar alles met de VLD in Kapellen .
Example Output: De: B-PER, Block: I-PER

Example Input: En dan moest ik dat verklaren .
Example Output: None

Example Input: De daaropvolgende opgave verwonderde dan ook niemand .
Example Output:
None