メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.005734630393 34.8795750334703, 137.005148980163 34.8791323034692, 137.004667886081 34.8787621849105, 137.004460193378 34.8785968890438, 137.004283827627 34.8784405796568, 137.004055049937 34.8782260951477, 137.002930103515 34.877114605094, 137.002756580846 34.8769219556531, 137.002565682592 34.8766512466951, 137.002445550133 34.8764654313655, 137.003477311537 34.8748362362, 137.006406161129 34.8760904893085, 137.006313014096 34.8766599321765, 137.006008027662 34.8782315916496, 137.005734630393 34.8795750334703)) ^^http://www.opengis.net/ont/geosparql#wktLiteral