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:
Beide raakten het achteraf niet eens over de koek die verdeeld kon worden .

Ex Output:
None


Ex Input:
Cijfers in de VS vielen wat tegen

Ex Output:
None


Ex Input:
Ze bouwen zo aan hun eigen levensverhaal .

Ex Output:

None