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: " En dat kan verklaren waarom ze op dat moment de eerste symptomen van een verstoorde slaapcyclus vertonen .

A: None
****
Q: De zin van zon

A: None
****
Q: Blaudzun ( Den ) 1:44 -- 7 .

A:
Blaudzun: B-PER
****