| http://www.w3.org/ns/prov#value | - ply-demand analogy does support my suggestion. according to you there are alternative suppliers (djibouty, sudan... albeit at slightly higher price) for ethiopia but there is no demand for asab other than from ethiopia. so where does that leave us, common sense tells me that the consumer (ethiopia in this case) has the upper hand. but there is one more factor i might add to your supply-demand driv
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