メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.878349388899 35.4237209590063, 136.877670625594 35.4235898585866, 136.877105886488 35.4234869164206, 136.876579807537 35.4233814242199, 136.87632485795 35.4233313374362, 136.876091163337 35.4232916529452, 136.875817301235 35.4232433157258, 136.875927104838 35.4209351290728, 136.875940279074 35.4204896525596, 136.875970267912 35.4202006185386, 136.878335550771 35.4201849859646, 136.878346702789 35.4211163107942, 136.878349388899 35.4237209590063)) ^^http://www.opengis.net/ont/geosparql#wktLiteral