メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.321790742696 38.2741966500658, 140.32198469447 38.2746309463336, 140.322727272381 38.2760896664168, 140.322974002657 38.2765498122272, 140.321299067051 38.2770465106604, 140.319265846288 38.2776797368295, 140.319035251185 38.2772255682138, 140.318317793247 38.2757634171236, 140.318103170054 38.27533831619, 140.317815731961 38.2748178708316, 140.317438148587 38.2742740823912, 140.318955982964 38.2737260635691, 140.319239144093 38.2736253782214, 140.32113095627 38.2729562088409, 140.321421281155 38.2734173908449, 140.321790742696 38.2741966500658)) ^^http://www.opengis.net/ont/geosparql#wktLiteral