| http://www.w3.org/ns/prov#value | - BRIEF DESCRIPTION OF THE DRAWINGS [0017] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which: [0018]FIG. 1 shows a configuration of a landmark according to a preferred embodiment of the present invention; [0019]FIG. 2 shows various landmarks according to
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