rtokens: At least 20 people were killed in the capital in early July after bodyguards loyal to Gaddafi 's sons fired at spectators of a football match who were chanting subversive slogans .
pos: NNS VBG IN NNP VBP NNS CC NN NNS VBP RB IN NNP .
tokens: Travellers arriving in Egypt say militants and police officers clash regularly in Benghazi .
ltokens: Tripoli-based diplomats and exiled opponents said Gaddafi 's airforce blasted in July rebel strongholds in the mountainous Jebel al-Akhdar region .