メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.900232453324 43.3314070334061, 141.899307739902 43.330999705845, 141.89900335987 43.3308442709214, 141.898471417931 43.330574775396, 141.89813362689 43.3304287321313, 141.897982540732 43.3303812944903, 141.897835082426 43.330364319536, 141.897634547628 43.3303664545318, 141.897490622611 43.3303881013366, 141.897327701829 43.3304290315825, 141.893230186686 43.3236706313383, 141.894005327049 43.3231231821247, 141.895869830773 43.321804872988, 141.897547199128 43.320578479359, 141.902234798657 43.3285580503742, 141.900232453324 43.3314070334061)) ^^http://www.opengis.net/ont/geosparql#wktLiteral