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'.

Input: Consider Input: Maar we moeten wel harder werken . "

Output: None


Input: Consider Input: Savoldelli ( Ita ) 8:23 -- 48 .

Output: Savoldelli: B-PER


Input: Consider Input: Dit zijn weerloze peuters en kleuters .


Output: None