メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.885975309285 43.805778040675, 143.885826882094 43.8059676921714, 143.885743573623 43.8061028093325, 143.885677683931 43.8063780526059, 143.885651092889 43.8065775788614, 143.885538955466 43.8074205604121, 143.885005542347 43.8073727161933, 143.88453765615 43.8073419694388, 143.883711761146 43.8072933654967, 143.883750776967 43.8069866698704, 143.883813948695 43.8064904697862, 143.88387495186 43.8059433365361, 143.883908625663 43.8056401465634, 143.883956971529 43.80525549171, 143.886442062922 43.8054195437958, 143.886221472202 43.8055620956839, 143.885975309285 43.805778040675)) ^^http://www.opengis.net/ont/geosparql#wktLiteral