メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.251834557323 36.1428239469862, 137.252089893624 36.1428099638971, 137.25255234933 36.1427981367888, 137.252906989038 36.1427909716406, 137.252988263435 36.1437059192135, 137.252957942736 36.1437732293042, 137.252957516215 36.1441256735459, 137.252970725033 36.1441802854658, 137.253004498893 36.1442755394616, 137.253019455856 36.1444247597994, 137.253040947404 36.1445446746215, 137.251658362464 36.1444011995182, 137.250917636465 36.1443113498246, 137.251018779812 36.143417131025, 137.251027164151 36.1433310000511, 137.251072137859 36.142868682638, 137.25139856686 36.1428775253096, 137.251398410636 36.1428789512543, 137.251751011936 36.1428870695614, 137.251834557323 36.1428239469862)) ^^http://www.opengis.net/ont/geosparql#wktLiteral