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In the country ' s southern region , British forces penetrated closer to the center of Basra , and warplanes dropped 500 - pound ( 225 - kilogram ) and 1 , 000 - pound ( 450 - kilogram ) laser - guided bombs on an Iraqi intelligence complex .
 ( transport: penetrated,  forces: artifact, center: destination) 
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:
 ( transport: penetrated,  forces: artifact, center: destination) 