1422
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 ).
 ( transfer ownership: bought,  ZAO Gazpromgeocomservice: buyer, which: artifact) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: declare bankruptcy, transfer ownership, transfer money, marry, transport, die, phone write, arrest jail, convict, sentence, sue, end organization, start organization, end position, start position, meet, elect, attack, injure, born, fine, release parole, charge indict, extradite, trial hearing, demonstrate, divorce, nominate, appeal, pardon, execute, acquit, merge organization, Arguments type: beneficiary, prosecutor, plaintiff, seller, victim, buyer, agent, destination, artifact, organization, recipient, person, place, origin, target, giver, adjudicator, attacker, vehicle, defendant, entity, instrument. 
Text: {0} 
Answer:
 ( transfer ownership: bought,  ZAO Gazpromgeocomservice: buyer, which: artifact) 