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: ' Hof veroordeelde politieke zeden van toen '

Output: None


Input: Consider Input: Roesems 2:06 -- 9 .

Output: Roesems: B-PER


Input: Consider Input: De CVP reageert kregelig en beschuldigt de koning van partijdigheid .


Output: None