メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.795113841097 43.2017855173027, 141.795036605951 43.2026301462753, 141.794509436159 43.2025290391089, 141.794070752276 43.2024938965087, 141.793330662848 43.2024946914679, 141.79277644233 43.2025415841136, 141.79280549723 43.2020920871219, 141.792921119061 43.2010467558171, 141.793528151064 43.2010838337663, 141.793757168895 43.2010599157384, 141.794081478475 43.2009675208854, 141.794386301635 43.2008516299403, 141.794662977791 43.200752714682, 141.794919521201 43.2007044280502, 141.795236453979 43.2007056791858, 141.795113841097 43.2017855173027)) ^^http://www.opengis.net/ont/geosparql#wktLiteral