メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.807964036956 35.2894300296253, 136.807606752454 35.2900901692372, 136.807265699927 35.2907542997586, 136.806878430788 35.2906157506833, 136.806497814992 35.2904827134323, 136.805682097896 35.2901956974874, 136.80604638206 35.2894808658703, 136.806101500241 35.2893705369399, 136.806433259427 35.2887061708726, 136.80784957236 35.2884638381618, 136.807855248963 35.2884763901081, 136.80790203335 35.2887247003273, 136.807959312188 35.2887657154596, 136.808003001162 35.2890681716085, 136.808017393578 35.2892802577108, 136.807964036956 35.2894300296253)) ^^http://www.opengis.net/ont/geosparql#wktLiteral