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: Deze keer is ons land aan de beurt .

Output: None


Input: Consider Input: Sommigen wijzen op de stijgende invloed van de ( Franstalige ) liberalen aan het hof .

Output: None


Input: Consider Input: Gelukkig dat hun kind niet bij de gegijzelden is .


Output: None