メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.644545799785 35.082278839337, 136.644590376257 35.0827182650578, 136.643924269618 35.0827623708978, 136.643159683024 35.0828341092656, 136.642444175624 35.0828717083513, 136.641933894038 35.082854129936, 136.641081451198 35.0827402579216, 136.641209647962 35.0822999870449, 136.641417113004 35.0814737893047, 136.641923731769 35.0815555466835, 136.643042542599 35.0815360939625, 136.64445671409 35.0814136487019, 136.644493171553 35.0818666402018, 136.644545799785 35.082278839337)) ^^http://www.opengis.net/ont/geosparql#wktLiteral