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'.

Input: Consider Input: Dat systeem hebben wij geperfectioneerd door alles digitaal op te meten en om te zetten .

Output: None


Input: Consider Input: Imperial Invest werd voor 50 procent aandeelhouder van Continental Foods .

Output: None


Input: Consider Input: Leoni ( Ita ) -- 4 .


Output: Leoni: B-PER