メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.171488175931 37.7416656121349, 139.171136954156 37.7427029488374, 139.170937726932 37.7432912986755, 139.166418483996 37.7436269265344, 139.166463765153 37.7435313600292, 139.166492488203 37.7434132190124, 139.166475756853 37.743110061942, 139.166345118349 37.7420623697585, 139.166206035958 37.7410216232724, 139.167502672662 37.7409139123853, 139.168815546313 37.740813415049, 139.170952164663 37.7406381108388, 139.171857879083 37.7405701637691, 139.171794945824 37.7407614270547, 139.171720391851 37.7409813370655, 139.171488175931 37.7416656121349)) ^^http://www.opengis.net/ont/geosparql#wktLiteral