メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.979447902875 38.5694809817532, 140.979731658302 38.5694168828234, 140.97977452381 38.5694075415505, 140.979781479772 38.5694278020049, 140.980213557241 38.5706907772404, 140.979885175224 38.5707657758407, 140.979216534823 38.5708908689302, 140.978721913507 38.5709878805716, 140.978065233988 38.5711284378714, 140.977976669943 38.5711445902026, 140.976048980686 38.5715180521456, 140.975608726281 38.5716049950645, 140.97588875361 38.5710919964374, 140.975968192716 38.5709308666972, 140.976278412534 38.5703699719746, 140.976403586567 38.5700685856228, 140.977573134782 38.5698957673705, 140.977622683365 38.5698883894579, 140.978179915621 38.5697730105942, 140.979447902875 38.5694809817532)) ^^http://www.opengis.net/ont/geosparql#wktLiteral