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'.

Ex Input:
Misschien is het allemaal veel simpeler .

Ex Output:
None


Ex Input:
Van de 102 genomen melkstalen bleek er ÃƒÆ’Ã‚Â©ÃƒÆ’Ã‚Â©n positief .

Ex Output:
None


Ex Input:
Op zijn tachtigste ziet hij eindelijk in dat leven ' vergeven ' is .

Ex Output:

None