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:
De man met de meeste klasse staat achter mij .

Ex Output:
None


Ex Input:
( KDM )

Ex Output:
KDM: B-PER


Ex Input:
" Woensdag was ze een beetje ziek .

Ex Output:

None