メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.982209572294 34.8750426974333, 136.982113136403 34.8750703000062, 136.982017010651 34.8751201573891, 136.981827354279 34.8752072711357, 136.981666671698 34.8752544240535, 136.98138909996 34.8753220327542, 136.980896059748 34.8753915641271, 136.980309982885 34.8745567740401, 136.981580860927 34.8739319056036, 136.981662195611 34.874190154808, 136.981767765147 34.8743868154659, 136.981920178024 34.8746362286367, 136.982047385812 34.8748449652768, 136.982209572294 34.8750426974333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral