325573
Founded in response to a plea by David Livingstone , the society established the mission stations that grew to be the bishoprics of Zanzibar and Nyasaland ( later Malawi ) , and pioneered the training of black African priests .
 location: Zanzibar
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: Zanzibar 
Answer:
 location: Zanzibar