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It turns out the anonymous company , BaikalFinansGroup , shares an address with OOO Tverneftemash , which was recently bought by ZAO Gazpromgeocomservice , not to ever be confused by the similarly - named Gazprom ( which by the way has a similar logo ).
 ZAO Gazpromgeocomservice: buyer; which: artifact
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: transfer ownership 
  Option: artifact, seller, place, beneficiary, buyer 
Text: {0} 
Answer:
 ZAO Gazpromgeocomservice: buyer; which: artifact