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: Topsnelheid ( km / u ) : 185

Output: None


Input: Consider Input: Grenstwist verdeelt Hoorn van Afrika

Output: None


Input: Consider Input: Sint-Michiels lag op de grote weg naar Rijsel , waarmee Ieper bloeiende handelsrelaties onderhield .


Output: None