メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.715564301424 35.1834464287775, 136.715483920029 35.183944653865, 136.714780009864 35.1838607920911, 136.712998787656 35.1836485030457, 136.713044372136 35.1834027541111, 136.713096065631 35.1831456907532, 136.713182498538 35.1826569933732, 136.713474754742 35.1810702483874, 136.71612222803 35.1813971484366, 136.716578803442 35.1814538302651, 136.716641530255 35.181721806523, 136.715849233314 35.1818812824219, 136.715688820365 35.1827762543247, 136.715564301424 35.1834464287775)) ^^http://www.opengis.net/ont/geosparql#wktLiteral