rtokens: Huge stadium lights are directed at the city 's Green Square where makeshift stages await Sunday 's festivities .
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tokens: " We have chosen the challenge because it is our only option , " proclaimed one banner on the road to Tripoli airport which serves only internal flights because of the sanctions .
ltokens: Green flags and banners praise the " great revolution " and promise defiance against United Nations sanctions imposed for Libya 's refusal to hand over for trial two suspects wanted in connection with the 1988 bombing of a Pan Am flight over Lockerbie , Scotland .