| http://www.w3.org/ns/prov#value | - Some dams were built for Afghanistan's HVA, but the project eventually was abandoned due to rising costs and other difficulties.Challenges encountered during the old HVA project really demonstrate the difficulties of doing water construction and water management in Afghanistan, O'Donovan said.However, U.S. and Afghan officials are pressing on, O'Donovan said, and are looking at [water] projects
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