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'.
--------
Question: Petersen ( Den ) -- 6 .

Answer: Petersen: B-PER


Question: Cijfers in de VS vielen wat tegen

Answer: None


Question: Van de persagentschappen

Answer:
None