instruction:
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'.
question:
Maar we moeten wel harder werken . "
answer:
None


question:
Casagrande ( Ita ) -- 4 .
answer:
Casagrande: B-PER


question:
Johan Rottiers is informaticacoÃƒÆ’Ã‚Â¶rdinator van het Kardinaal Van Roey Instituut in Vorselaar .
answer:

Johan: B-PER, Rottiers: I-PER