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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 .
 Montgomery: entity; Stinnett: entity
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: phone write 
  Option: entity, place 
Text: {0} 
Answer:
 Montgomery: entity; Stinnett: entity