メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.995171747339 34.6804128767214, 137.994030392521 34.6810211662631, 137.993839626666 34.6802511504526, 137.994328281829 34.6801189377633, 137.994051833595 34.6793482851214, 137.994190855246 34.6793326622286, 137.994580414366 34.679273847574, 137.99475099693 34.6797324831187, 137.994771403413 34.6798677912202, 137.994786310728 34.6799472968026, 137.99490139418 34.6800336958477, 137.995070481509 34.6801637032766, 137.995132597652 34.6802470658848, 137.995163391701 34.6803217077494, 137.995171747339 34.6804128767214)) ^^http://www.opengis.net/ont/geosparql#wktLiteral