メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.630306814013 35.3582910708327, 136.630304461253 35.3583478914678, 136.629874336864 35.3583438681475, 136.629872545426 35.358257381807, 136.629656647509 35.3582583233821, 136.629656889331 35.3582217750691, 136.629178091491 35.3582144347877, 136.629178519941 35.3578121131513, 136.629179602331 35.3577850757316, 136.630284448709 35.3577600565258, 136.630328681766 35.3577590558292, 136.630306814013 35.3582910708327)) ^^http://www.opengis.net/ont/geosparql#wktLiteral