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: Hoewel , dit moet mij toch van het hart : dansen en springen zegt mij veel meer dan borrels drinken .
Example Output: None

Example Input: Vrijdag .
Example Output: None

Example Input: Bral en Inter-Environnement , twee Brusselse milieubewegingen , stappen naar de rechter in kortgeding. ( zie ook pagina 1 en 2 ) .
Example Output:
None