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He was born in Kalgoorlie , Western Australia , and voluntarily joined the Australian Army for service in the Vietnam War in 1968 .
 location: Kalgoorlie; location: Western Australia; organization: Australian Army; event: Vietnam War
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 location: Kalgoorlie; location: Western Australia; organization: Australian Army; event: Vietnam War