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: " Ik ben ontzettend blij met deze comeback .

Output: None


Input: Consider Input: Dankzij de steun van Buenahora herstelde Casagrande even later wel het probleem .

Output: Buenahora: B-PER, Casagrande: B-PER


Input: Consider Input: Want wie wat ouder is , en niet meer in conditie , kan die conditie maar beter langzaam opbouwen .


Output: None