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In 1990 , with an election looming , tough political operator Graham Richardson was appointed Environment Minister , and was given the task of attracting second-preference votes from the Australian Democrats and other environmental parties .
 person: Graham Richardson; organization: Australian Democrats
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: Graham Richardson, Australian Democrats 
Answer:
 person: Graham Richardson; organization: Australian Democrats