1102
Between 2 , 500 and 3 , 000 people picketed the CNN studios in Los Angeles while others at the Atlanta headquarters protested the cable network ' s coverage of the war for being biased toward the United States .
 ( demonstrate: picketed,  studios: place, people: entity) 
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:
 ( demonstrate: picketed,  studios: place, people: entity) 