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: Wat is het gewicht van de nieuwe maatschappij ?
Example Output: None

Example Input: Zondag .
Example Output: None

Example Input: VN-Tribunaal toont ' genade ' omwille van ' zwakke en manipuleerbare persoonlijkheid ' Ruggiu
Example Output:
Ruggiu: B-PER