メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.75789429967 35.4393570611181, 136.758902431019 35.4393214702743, 136.758912750021 35.439741588002, 136.758911634009 35.4409634570711, 136.757645048035 35.4407239664334, 136.757630701442 35.4407701128405, 136.755869346363 35.4403947560739, 136.756064668774 35.4397763640252, 136.756192855993 35.4393818197773, 136.75632859697 35.4389993402071, 136.75789429967 35.4393570611181)) ^^http://www.opengis.net/ont/geosparql#wktLiteral