Completed the following sentence: The PLO took advantage of its control of southern Lebanon in order to launch Katyusha rocket attacks on Galilee villages and execute terror attacks on the northern border. <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> In an attempt to publicize the Palestinian cause, frustrated Palestinian guerrilla groups in Lebanon attacked Israeli civilian 'targets' like schools, buses and apartment blocks, with occasional attacks abroad<unk>for example, at embassies or airports<unk>and with the hijacking of airliners. In an attempt to publicize the Palestinian cause, frustrated Palestinian guerrilla groups in Lebanon attacked Israeli civilian 'targets' like schools, buses and apartment blocks, with occasional attacks abroad<unk>for example, at embassies or airports<unk>and with the hijacking of airliners. <unk> <unk> <unk>
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