メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.85789118023 35.8860966334997, 139.856840570549 35.885929259057, 139.856953799895 35.8854719986885, 139.856987029382 35.8854768239825, 139.858002484206 35.8856368811828, 139.85789118023 35.8860966334997)) ^^http://www.opengis.net/ont/geosparql#wktLiteral