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'.

Hij is schoonzoon van de door hen afgezette president Ratu Sir Kamisese Mara .
Ratu: B-PER, Sir: I-PER, Kamisese: I-PER, Mara: I-PER