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:
Camenzind , Serpellini , Spruch , ik , ...

Ex Output:
Camenzind: B-PER, Serpellini: B-PER, Spruch: B-PER


Ex Input:
Ik vrees het ergste .

Ex Output:
None


Ex Input:
Ook op de universiteit was dat verschil te merken .

Ex Output:

None