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: " En mocht hij zijn onaanvaardbaar gedrag herhalen , zal hij van Wimbledon gebannen worden . "
Example Output: None

Example Input: De politie had ons al geÃƒÆ’Ã‚Â¯nformeerd dat hij wild rond zich begon te schoppen .
Example Output: None

Example Input: Zo worden de 2 en 2,4 liter-motoren vervangen door krachtiger varianten .
Example Output:
None