メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.922639982624 34.9046555985112, 136.924614798528 34.9046658703822, 136.924627438484 34.9049292295728, 136.92557677295 34.9049349827335, 136.925559534941 34.9053692852011, 136.925544256803 34.9060507276114, 136.924590088195 34.9060577817691, 136.92459402877 34.9063874689774, 136.924593099897 34.9064093788087, 136.924559377047 34.9072040954819, 136.92276659384 34.9071972840409, 136.922697531235 34.906377281383, 136.921678837577 34.9063647494007, 136.921547275561 34.9055058152915, 136.921556990318 34.9046455437653, 136.922639982624 34.9046555985112)) ^^http://www.opengis.net/ont/geosparql#wktLiteral