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: BPT-uren zijn vrijgestelde lesuren voor bijzondere pedagogische taken .
Example Output: None

Example Input: Het kan vernietigd worden of ...
Example Output: None

Example Input: Zabel ( Dui ) 3u15:58 -- 2 .
Example Output:
Zabel: B-PER