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The total proven reserves of the Akçakoca gas field are around 127 billion cubic feet ( 3.6 × 109m ³ ) , and production is slated to be around 50 million cubic feet/day ( 1.4 × 106m ³ ) in 2015 .
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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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