メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.496693478847 33.2958512292671, 131.497168965194 33.2958511319744, 131.498140309629 33.2958751708329, 131.498675198342 33.295888225575, 131.499183276882 33.2958995568259, 131.499192295645 33.2958998200113, 131.500157108821 33.2959292312539, 131.500082984616 33.2974519766131, 131.499111826956 33.2974315221828, 131.498069833864 33.297404651082, 131.497091616285 33.2973860174876, 131.497079871859 33.2973858000136, 131.496069088819 33.2973754375415, 131.495417193261 33.2973575202929, 131.495557838652 33.2958321202125, 131.49613472215 33.2958425559734, 131.496693478847 33.2958512292671)) ^^http://www.opengis.net/ont/geosparql#wktLiteral