72163
Before the Akkadian period , the progressive salinisation of the soils , produced by poorly drained irrigation , had been reducing yields of wheat in the southern part of the country , leading to the conversion to more salt-tolerant barley growing .
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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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