Complex sentence: Ouled Khoudir lies at in the Saoura valley the on banks of Oued Saroua, a wadi that marks the western edge of the Grand Erg Occidental, a large area of sand dunes in the Sahara desert.
Split into simpler sentences: Ouled Khoudir lies at in the Saoura valley the on banks of Oued Saroua. The wadi marks the western edge of the Grand Erg Occidental, a large area of sand dunes in the Sahara desert.