メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.915413073236 37.78208178561, 138.916064840865 37.7825218463061, 138.917363045323 37.7834045104293, 138.91614637115 37.7835994209054, 138.914566573829 37.7838468385323, 138.9144380963 37.7833148343004, 138.914299752272 37.7828021520285, 138.913645556126 37.7829021475189, 138.913052304955 37.7827983491971, 138.912981310686 37.782464793633, 138.912899251952 37.7820793249725, 138.913136050268 37.7818645030119, 138.913970043652 37.7811120413685, 138.915413073236 37.78208178561)) ^^http://www.opengis.net/ont/geosparql#wktLiteral