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Australian parliamentarian John Langmore has formally resigned from his lower house seat , the office of House of Representatives speaker Bob Halverson said on Friday .
 organization: House of Representatives; person: John Langmore; person: Bob Halverson; else: Australian
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 organization: House of Representatives; person: John Langmore; person: Bob Halverson; else: Australian