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'.

Example Input: Om de eindbestemming Djerba te bereiken , rijden we langs een prachtig landschap .
Example Output: None

Example Input: Vanwaar die interesse van de familie Baert voor Almanij ?
Example Output: Baert: B-PER

Example Input: Quick en Flupke .
Example Output:
Quick: B-PER, Flupke: B-PER