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:
Van de Wouwer 0:13 -- 4 .

Ex Output:
Van: B-PER, de: I-PER, Wouwer: I-PER


Ex Input:
In Nederland en Duitsland heeft het programma veel politieke tamtam veroorzaakt .

Ex Output:
None


Ex Input:
Volkomen terecht .

Ex Output:

None