| http://www.w3.org/ns/prov#value | - e as follows:(a) fixed fees or charges:(b) fees or charges based on a scale or formula or at a rate determined on an hourly or other unit basis:(c) the recovery by way of fee or charge of actual and reasonable costs expended in or associated with the performance of a service or function:(d) estimated fees or charges, or fees or charges based on estimated costs, paid before the provision of the ser
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