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

Output: None


Input: Consider Input: Dat woord kent u niet ?

Output: None


Input: Consider Input: De index kreeg een steuntje van meer dan 15 punten van Fortis .


Output: None