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Biography By c. 1607 , Nanepashemet controlled the lands from the Charles River of present-day Boston , north to the Piscataqua River in Portsmouth and west to the Concord River .
 Nanepashemet, Boston, Portsmouth, Concord
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nanepashemet, Boston, Portsmouth, Concord