Given the task definition and input, reply with output. 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'.

De verankeringsstrategie van de familie Baert en de zoektocht naar nieuwe opportuniteiten van de familie Collin leidde tot de fusie tussen Imperial Invest en Concentra .

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Baert: B-PER, Collin: B-PER