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Her father was the second son of Ferdinand Philippe , Duke of Orléans , and Duchess Helena of Mecklenburg-Schwerin .
 organization: Ferdinand Philippe , Duke of Orléans; organization: Duchess Helena of Mecklenburg-Schwerin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Ferdinand Philippe , Duke of Orléans; organization: Duchess Helena of Mecklenburg-Schwerin