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 vrees het ergste .

Output: None


Input: Consider Input: WWW : www.costreduction.nl/cvs/vergouw.html en www.strafschop.nl

Output: None


Input: Consider Input: Info : http://www.mloz.be/cgi-bin/iesnl/iesgen.cgi ? page=http://www.mloz.be/nl/ies/brochures/br13.html of http://www.acc-vkb.be/index.cfm ?


Output: None


