Now , however , Sudan and Chad are building up forces and fighting skirmishes along their border in Darfur .
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Sudan /location/country/administrative_divisions Darfur
Darfur /location/administrative_division/country Sudan
RB , RB , NNP CC NNP VBP VBG RP NNS CC VBG NNS IN PRP$ NN IN NNP .
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Darfur
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/location/location/contains
Sudan
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