メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.449555292061 43.8130273069267, 142.449786780266 43.8131780724398, 142.45031303626 43.8135040680357, 142.450837506497 43.8138243512762, 142.44947604158 43.8149413524723, 142.448942270285 43.8146029549283, 142.448577230503 43.8143726428812, 142.448214625049 43.8141438528324, 142.447837024588 43.8139128733351, 142.44782287908 43.8139038266702, 142.447397451364 43.8136315104951, 142.44764817973 43.8134383979897, 142.44828046416 43.8128988054832, 142.448723399264 43.812508599927, 142.449555292061 43.8130273069267)) ^^http://www.opengis.net/ont/geosparql#wktLiteral