メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.916969815968 35.1937613889394, 136.91698798482 35.1941260132699, 136.916840285941 35.1941088737272, 136.916258255361 35.1941342080215, 136.915509786801 35.1941616560645, 136.915514508028 35.1938112340214, 136.915514673683 35.1937991209165, 136.915517606208 35.1932071399743, 136.915917393424 35.1931964280985, 136.916229087379 35.1931881366631, 136.916243051939 35.1931877431096, 136.916555518004 35.1931793821448, 136.916932602061 35.1931722117049, 136.916969815968 35.1937613889394)) ^^http://www.opengis.net/ont/geosparql#wktLiteral