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Leijer spent two years at the Victorian Institute of Sport and then moved on to the Melbourne Knights for the last season of the now defunct National Soccer League , where he made 18 appearances during a season where the club finished second last in the competition .
 Leijer, Melbourne Knights
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Leijer, Melbourne Knights