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Singh started his career in Amritsar in 1998-1999 , playing for Punjab and before the end of the year , he was playing for the Under-19 squad .
 Singh, Amritsar, Punjab
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Singh, Amritsar, Punjab