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: Distributie-experts speculeren over toekomstige modellen voor e-business .

Output: None


Input: Consider Input: De terugkeer van de gekwetste Patrick Ewing vond Van Gundy waardevol .

Output: Patrick: B-PER, Ewing: I-PER, Van: B-PER, Gundy: I-PER


Input: Consider Input: Maar uit recente overzichtsstudies blijft er geen spat bewijs over dat zonnebanken melanomen veroorzaken .


Output: None