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 digitale toekomst is immers volledig afhankelijk van de introductie van digitale decoders , en die zijn er momenteel enkel bij de abonnees van Canal + .

Ex Output:
None


Ex Input:
Baguet -- 18 .

Ex Output:
Baguet: B-PER


Ex Input:
Kofferinhoud min / max ( l ) : 515 / 2.927

Ex Output:

None