メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.156181359693 35.0802440418084, 137.156100480696 35.0806942701676, 137.156094410233 35.0807338479798, 137.155281038761 35.0807925558916, 137.153888143094 35.0808866037019, 137.153352247779 35.080922799772, 137.152916218693 35.0809522469814, 137.153254143089 35.080196828754, 137.153354477969 35.0800435253755, 137.153665473942 35.0794653654277, 137.153560895721 35.0788352467464, 137.153881857077 35.0788719824353, 137.154424158612 35.0789464260459, 137.154445990842 35.0788196612175, 137.155711953815 35.0789038411566, 137.156261442546 35.0789319369729, 137.156436483449 35.0789500569117, 137.156256136634 35.0798277616075, 137.156181359693 35.0802440418084)) ^^http://www.opengis.net/ont/geosparql#wktLiteral