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u . s . officials say some intelligence indicates a red line may have been drawn around the capital with republican guard units ordered to use chemical weapons once u . s . and allied troops cross it .
 geographical social political: u . s; geographical social political: the capital; geographical social political: u . s; organization: republican guard; person: u . s . officials; person: republican guard units; person: u . s . and allied troops; weapon: chemical weapons
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 geographical social political: u . s; geographical social political: the capital; geographical social political: u . s; organization: republican guard; person: u . s . officials; person: republican guard units; person: u . s . and allied troops; weapon: chemical weapons