15162
He spent several years on Norfolk Island but returned to Pitcairn in 1864 .
 organization: Norfolk Island; organization: Pitcairn
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: Norfolk Island, Pitcairn 
Answer:
 organization: Norfolk Island; organization: Pitcairn