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The leader of the group was Danilo Stojanović , better known as Čika Dača , considered the pioneer of football in the Kingdom of Serbia .
 Danilo Stojanović, Kingdom of Serbia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Danilo Stojanović, Kingdom of Serbia