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U . S . Attorney Todd Graves said Montgomery contacted Stinnett through an online message board , and authorities zeroed in on her using computer forensics .
 geographical social political: U . S; person: U . S . Attorney; person: U . S . Attorney Todd Graves; person: Montgomery; person: Stinnett; person: authorities; person: her
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; person: U . S . Attorney; person: U . S . Attorney Todd Graves; person: Montgomery; person: Stinnett; person: authorities; person: her