メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.875007125798 35.4232568399346, 136.874211678699 35.4232600784673, 136.873621781723 35.4232693774115, 136.873666944086 35.4214920357183, 136.873659716515 35.4213561442868, 136.873648682758 35.4212076388511, 136.873602871898 35.4210653499499, 136.873598245425 35.4202122096445, 136.875970267912 35.4202006185386, 136.875940279074 35.4204896525596, 136.875927104838 35.4209351290728, 136.875817301235 35.4232433157258, 136.875748777719 35.4232369526176, 136.875007125798 35.4232568399346)) ^^http://www.opengis.net/ont/geosparql#wktLiteral