メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.114387978644 36.7600880643227, 137.113880609151 36.7596977250148, 137.113424391298 36.7595690348289, 137.113184908024 36.7594725427345, 137.112256131778 36.759281822006, 137.112683102224 36.7578096758578, 137.113747531541 36.758277291414, 137.114337680514 36.7585230539939, 137.114782436972 36.7587160168208, 137.114387978644 36.7600880643227)) ^^http://www.opengis.net/ont/geosparql#wktLiteral