メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.181198993994 34.2227633060959, 135.181202870199 34.2227307925657, 135.181080513508 34.2219762001471, 135.182656602911 34.2214945272943, 135.183001871412 34.2218818171433, 135.183189176447 34.2221457810742, 135.18242652393 34.2224832857544, 135.182271317972 34.2224957739018, 135.181948298653 34.2225444716649, 135.181796847843 34.2225807904287, 135.181559467203 34.2226471040603, 135.181198993994 34.2227633060959)) ^^http://www.opengis.net/ont/geosparql#wktLiteral