メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.409091127696 34.7755952082829, 135.408983971744 34.7763595696146, 135.407917744647 34.7763766051755, 135.408040991319 34.7756412590557, 135.408170210857 34.7748337432042, 135.408259915326 34.774262643949, 135.408275603966 34.7741761636873, 135.409339454005 34.774169005753, 135.409297100735 34.7742985409271, 135.409209825253 34.7747801797077, 135.409145121488 34.7752648575363, 135.409091127696 34.7755952082829)) ^^http://www.opengis.net/ont/geosparql#wktLiteral