メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.970618445143 37.8802738020065, 138.970417035772 37.880717512607, 138.970160829717 37.8812809671864, 138.970115553526 37.88137505199, 138.969957340271 37.8815371612152, 138.969695296834 37.8817892233794, 138.969522488354 37.8819467445236, 138.969145582974 37.8816395028106, 138.968840287732 37.8814134873245, 138.968454454697 37.8811333082458, 138.968123495065 37.8809210492191, 138.967673481756 37.880644783341, 138.968021861949 37.8803592977337, 138.968232351 37.8801706576155, 138.968636600594 37.8798306064439, 138.968658741381 37.8797219740805, 138.96889692991 37.8795181579786, 138.969192011018 37.8792951093476, 138.969860720129 37.878673560645, 138.969893215872 37.8786862421554, 138.970436977086 37.8790208354401, 138.971239553243 37.8795124959648, 138.971513045024 37.8796810489213, 138.97111586578 37.8799577281904, 138.970618445143 37.8802738020065)) ^^http://www.opengis.net/ont/geosparql#wktLiteral