メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.838238038675 36.3211439207974, 139.836810597567 36.3216752984723, 139.83675715101 36.3214438575933, 139.836606136323 36.3206322620343, 139.836401444763 36.319562818391, 139.836299092887 36.3189914279671, 139.837436150835 36.3188502810041, 139.83772177812 36.3188065524497, 139.838803234375 36.3209171856077, 139.838238038675 36.3211439207974)) ^^http://www.opengis.net/ont/geosparql#wktLiteral