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: Solidariteit is hier geen ijdel woord in de Trans Tunisia .
Example Output: None

Example Input: Het tuig gaat zo'n 30 miljoen Finse mark of 4,5 miljoen euro ( 181,5 miljoen frank ) kosten .
Example Output: None

Example Input: Maar later kwamen ze me vragen om hun dromen te verklaren .
Example Output:
None