メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.102931215184 43.8244589796841, 144.101542180012 43.8248821639049, 144.100924697363 43.8238535219856, 144.102348371868 43.8234203950077, 144.102931215184 43.8244589796841)) ^^http://www.opengis.net/ont/geosparql#wktLiteral