メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.391419212697 34.7769937204095, 135.39172832707 34.7770651192177, 135.392686344058 34.7773004476146, 135.393637244488 34.7775332965138, 135.393391166964 34.7783785773246, 135.39313585819 34.7791963302298, 135.392678656357 34.7788398764956, 135.392149947791 34.7784043205794, 135.39207317441 34.7783411836766, 135.391874406663 34.7781826260459, 135.391648871289 34.7779939838465, 135.39103210324 34.7774780944983, 135.390573375231 34.7771140413559, 135.390755417337 34.7768324467068, 135.391419212697 34.7769937204095)) ^^http://www.opengis.net/ont/geosparql#wktLiteral