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Putin said this reduction would depend on compliance with the Russian - American anti - ABM missile treaty signed in 1972 , which the Americans are attempting to amend to set up anti - missile defenses ( NMD ) .
 geographical social political: Russian; geographical social political: American; geographical social political: the Americans; person: Putin; weapon: ABM; weapon: ABM missile; weapon: missile
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 geographical social political: Russian; geographical social political: American; geographical social political: the Americans; person: Putin; weapon: ABM; weapon: ABM missile; weapon: missile