メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.359071844658 43.7455754380284, 142.35908229371 43.745575428021, 142.359263493439 43.7455012937699, 142.359609963624 43.7459036034206, 142.359457073596 43.745977729006, 142.359060695054 43.7461588880721, 142.358565657307 43.7463813487578, 142.358476929485 43.7461430091027, 142.358374173543 43.7457464248059, 142.358333218014 43.7455557344364, 142.358725245528 43.745575769435, 142.358750990722 43.7455757448544, 142.358704334287 43.7456592380433, 142.358717851808 43.7456628940044, 142.358973018488 43.7457335233078, 142.359071844658 43.7455754380284)) ^^http://www.opengis.net/ont/geosparql#wktLiteral