メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.832759440723 34.9040197137113, 136.83261547267 34.9044784911015, 136.832741652559 34.905184514643, 136.832429859133 34.9060272808499, 136.832360830446 34.9061482914797, 136.832196583591 34.9063764354054, 136.832036257993 34.9062998562616, 136.83176721341 34.9067152527328, 136.830160779462 34.9059668312318, 136.830513872785 34.9054282872609, 136.830849156416 34.9048690580429, 136.831573841997 34.9035921483534, 136.831660480632 34.9036192230342, 136.832460826309 34.9038420396526, 136.832564288074 34.9039262057826, 136.832658806734 34.9039813316399, 136.832759440723 34.9040197137113)) ^^http://www.opengis.net/ont/geosparql#wktLiteral