メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.053692635315 42.9104466035581, 143.05359917235 42.9110956561049, 143.052876162667 42.9110479057157, 143.052113387747 42.910995436409, 143.052255145461 42.910358283086, 143.052275030056 42.9102686802935, 143.052289324857 42.9099988535603, 143.053327849031 42.9100669019444, 143.053746801134 42.9100943473058, 143.053704304426 42.9103654279312, 143.053692635315 42.9104466035581)) ^^http://www.opengis.net/ont/geosparql#wktLiteral