メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.709490671738 35.1218390531352, 136.709049545025 35.1219910443581, 136.708974684127 35.1219966046758, 136.708448740517 35.1220194636759, 136.708123991176 35.1217651204337, 136.710199049797 35.119332922424, 136.71234436298 35.1205224416413, 136.712200679174 35.1207416249978, 136.712042629076 35.1209546968549, 136.711951281139 35.1210348471589, 136.711647125584 35.121241449555, 136.711305600025 35.1214318517858, 136.710466834133 35.1216247306127, 136.710113584313 35.121681910852, 136.709840552485 35.1217408736682, 136.709490671738 35.1218390531352)) ^^http://www.opengis.net/ont/geosparql#wktLiteral