Given that both companies agreed to extend the trial to more markets is an early indication that the arrangement is working out.

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Both he and Mr Lavrov agreed that a negotiated end to the conflict was still possible but neither man gave indication of ways out of the impasse.

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But he adds that in essence both leaders have simply agreed to implement deals they had already signed - and the fact that this is necessary gives an indication of just how bad the relationship is between the two Sudans.

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