メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.088118075423 37.9253027666822, 139.087498458194 37.9275528834899, 139.086117379701 37.927315184665, 139.084152289257 37.9268969092, 139.084230364713 37.9266090446744, 139.083294143276 37.9265163747701, 139.083405896154 37.925854424451, 139.084278464187 37.9260073799913, 139.084631344564 37.9247402763512, 139.086386646307 37.9250230240159, 139.088118075423 37.9253027666822)) ^^http://www.opengis.net/ont/geosparql#wktLiteral