メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.476744618025 33.6931253531616, 130.476286368447 33.6934085598682, 130.475396805504 33.692321572166, 130.476440553328 33.6923922290173, 130.477211849308 33.6924299498968, 130.477349147721 33.6924677263382, 130.477340628707 33.6925386264488, 130.477279274831 33.6926579078822, 130.477107473733 33.6928626606762, 130.47697146359 33.6929459820799, 130.476744618025 33.6931253531616)) ^^http://www.opengis.net/ont/geosparql#wktLiteral