メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.859181794678 35.2469514963073, 136.859182476178 35.247539041205, 136.859202853378 35.2492661577258, 136.857209532647 35.249269433637, 136.857182041494 35.2492692926962, 136.857001982195 35.2492681962365, 136.857000407462 35.248135079223, 136.856637413434 35.2481341456798, 136.856660117201 35.2469946838129, 136.856671449809 35.246537312882, 136.857556847735 35.2465123335958, 136.857797281022 35.246504710174, 136.859149028383 35.2464554195631, 136.859162530135 35.2464546093845, 136.859181794678 35.2469514963073)) ^^http://www.opengis.net/ont/geosparql#wktLiteral