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He made his Ekstraklasa debut in August 2008 against GKS Bełchatów , playing the full match .
 Ekstraklasa, GKS Bełchatów
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ekstraklasa, GKS Bełchatów