メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.9772835775 34.8660342318606, 136.977014680936 34.866131002403, 136.976774061214 34.8655668344096, 136.977022055541 34.8655018653269, 136.976935904816 34.8650228793839, 136.977749132463 34.8649048460414, 136.97774272431 34.864660444753, 136.978416683706 34.8656192706371, 136.977866995383 34.8658226581907, 136.9772835775 34.8660342318606)) ^^http://www.opengis.net/ont/geosparql#wktLiteral