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One , known as the State of Western Guo was at Yongdi and the other , the State of Eastern Guo , at Zhidi ( modern day Xiyang City , Henan Province ) .
 Henan Province
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Henan Province