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Chief of Staff Luigi Cadorna marched his army towards the Isonzo river , hoping to seize Ljubljana , and to eventually threaten Vienna .
 Luigi Cadorna, Isonzo, Ljubljana, Vienna
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Luigi Cadorna, Isonzo, Ljubljana, Vienna