メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.309805343875 36.3108105976861, 136.309630169075 36.3108631729371, 136.309391361112 36.310276075564, 136.31026732423 36.3099963783357, 136.310429692328 36.3103507846564, 136.310590246419 36.3103065195307, 136.310752505975 36.3106710292847, 136.310264609526 36.3108088505499, 136.310216384952 36.3106604688674, 136.309805343875 36.3108105976861)) ^^http://www.opengis.net/ont/geosparql#wktLiteral