メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.931282803517 37.7574491379635, 140.931201371266 37.7574283560672, 140.931153596448 37.7573993766698, 140.929833122305 37.7560143547719, 140.930704066431 37.7556921569821, 140.93073173697 37.7559630536239, 140.930767452641 37.7560942165706, 140.930816454074 37.7562065304999, 140.930974003473 37.7563445838086, 140.93129711944 37.7565872480435, 140.931355277822 37.7566351371173, 140.931282803517 37.7574491379635)) ^^http://www.opengis.net/ont/geosparql#wktLiteral