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'.

Q: " Een maand of twee .

A: None
****
Q: Casagrande ( Ita ) -- 4 .

A: Casagrande: B-PER
****
Q: " De oorzaak kwam snel aan de oppervlakte " , zegt hij .

A:
None
****