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The forerunner of the League of Nations , the Inter-Parliamentary Union ( IPU ) , was formed by peace activists William Randal Cremer and Frédéric Passy in 1889 .
 organization: Inter-Parliamentary Union; person: William Randal Cremer; person: Frédéric Passy
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: Inter-Parliamentary Union, William Randal Cremer, Frédéric Passy 
Answer:
 organization: Inter-Parliamentary Union; person: William Randal Cremer; person: Frédéric Passy