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But to obtain a stronger claim to his throne and to appease the French ( act 2 , scene 1 ) , John agrees to a marriage contract between Blanche of Castile , his niece , and Louis the Lion , Philip 's son ( 1200 ) .
 person: Blanche of Castile; person: Louis the Lion; person: Philip
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Blanche of Castile, Louis the Lion, Philip 
Answer:
 person: Blanche of Castile; person: Louis the Lion; person: Philip