メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.314844796368 43.0793599241116, 141.314176458823 43.0797634909875, 141.313903874047 43.07992801089, 141.313521102518 43.0801582984935, 141.313394774933 43.0800429094092, 141.313279233746 43.0799374541309, 141.313263052737 43.0799226931844, 141.313164546692 43.0798327096973, 141.312570799355 43.079269573748, 141.312579395972 43.0792657760007, 141.31299548194 43.079084290292, 141.313313436406 43.0789455336356, 141.314042060697 43.0786276331362, 141.314322505642 43.0788729846774, 141.314844796368 43.0793599241116)) ^^http://www.opengis.net/ont/geosparql#wktLiteral