メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.730052982811 35.1737862617793, 136.729649283374 35.1737994517307, 136.729287803133 35.1738170186706, 136.729313153747 35.1743288574615, 136.728962567181 35.1742974500218, 136.728927247665 35.1742942935854, 136.728913283197 35.1740671362831, 136.728890956995 35.1737277685771, 136.728816676417 35.1731282189519, 136.728923605498 35.1731164939851, 136.729128136703 35.1731132903126, 136.729239359251 35.1731087628364, 136.729576673406 35.1730950532566, 136.729607041616 35.1730938244141, 136.730051630033 35.173068036659, 136.730052982811 35.1737862617793)) ^^http://www.opengis.net/ont/geosparql#wktLiteral