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Niugini Mining Ltd said on Thursday that Battle Mountain had initiated talks about acquiring the shares in Niugini it does not already own . "
 organization: Niugini; organization: Battle Mountain; organization: Niugini Mining Ltd
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
 Entities: Niugini, Battle Mountain, Niugini Mining Ltd 
Answer:
 organization: Niugini; organization: Battle Mountain; organization: Niugini Mining Ltd