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Some 70 people were arrested Saturday as demonstrators clashed with police at the end of a major peace rally here , as at least 200 , 000 anti - war protesters took to the streets across the United States and Canada .
 here, the United States, Canada, Some 70 people, demonstrators, police, at least 200 , 000 anti - war protesters, the streets across the United States and Canada
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 here, the United States, Canada, Some 70 people, demonstrators, police, at least 200 , 000 anti - war protesters, the streets across the United States and Canada