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: J. Groosman ,
Example Output: J.: B-PER, Groosman: I-PER

Example Input: Georges Ruggiu kan binnen negen jaar vrij zijn
Example Output: Georges: B-PER, Ruggiu: I-PER

Example Input: Naast sommige van de huizen lagen grote putten , bekleed met houtpulp en vlechtwerk .
Example Output:
None