メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.625489486018 34.6503649174793, 135.624266032116 34.6504167991313, 135.624248906 34.6474393679886, 135.625373318656 34.6474181717333, 135.625528102851 34.6474142804661, 135.625538165674 34.6483545577184, 135.625553863081 34.6498251942352, 135.625553893461 34.6498281530842, 135.625553923385 34.6498309703948, 135.625559597275 34.6503620330577, 135.625489486018 34.6503649174793)) ^^http://www.opengis.net/ont/geosparql#wktLiteral