255595
Archaeology Microlith s of crystalline stone and petrified wood from about 1250 – 1000 BC are found in many places in the Ajay - Kunur - Kopai river system .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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