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: Heb ik daarvan genoten !

Output: None


Input: Consider Input: In de profielen ontdekten De Puydt en Lohest verschillende beenderrijke lagen met ook menselijke fossielen .

Output: De: B-PER, Puydt: I-PER, Lohest: B-PER


Input: Consider Input: Hoeveel nieuwe aandelen wil u introduceren ?


Output: None