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The Munger Fort , located at Munger ( also spelt as Monghyr during the British Raj ) , in the state of Bihar , India , is built on a rocky hillock on the south bank of the Ganges River .
 Munger, Munger, British Raj, Bihar
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Munger, Munger, British Raj, Bihar