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'.
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Question: " Ik heb geweend , weet u .

Answer: None


Question: Casagrande ( Ita ) -- 4 .

Answer: Casagrande: B-PER


Question: In 1999 hebben we een hogere cashflow gehaald dan het jaar voordien .

Answer:
None