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: WOW doet mee in Antwerpen
Example Output: None

Example Input: Camenzind , Serpellini , Spruch , ik , ...
Example Output: Camenzind: B-PER, Serpellini: B-PER, Spruch: B-PER

Example Input: Ook deze week bleef de commissie die zich moet buigen over 32.000 regularisatiedossiers van asielzoekers niet uit het nieuws .
Example Output:
None