メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.730324696704 35.1217912790766, 136.730828212051 35.1222218710321, 136.729283213374 35.1224938825123, 136.728670367258 35.1226114472961, 136.728083518951 35.1227078343142, 136.727482925031 35.1228176188708, 136.726907025628 35.122909532442, 136.725675837632 35.1231356680969, 136.725303427397 35.1216711060455, 136.726514851297 35.1214582096993, 136.728291651782 35.1211460180739, 136.728330301458 35.1211392573336, 136.729335804642 35.1209625543402, 136.729376571861 35.1209922818012, 136.730324696704 35.1217912790766)) ^^http://www.opengis.net/ont/geosparql#wktLiteral