メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.190873956804 36.2271773046799, 136.190568020355 36.2271589796385, 136.190579200403 36.2272272972481, 136.190215072656 36.2272604129205, 136.190080945897 36.226057074676, 136.190447162636 36.2260003332072, 136.19068152883 36.2260100960024, 136.190725006468 36.2262359985869, 136.190754501489 36.2266009904418, 136.190793015941 36.2269934822516, 136.190836212086 36.2271034851268, 136.190873956804 36.2271773046799)) ^^http://www.opengis.net/ont/geosparql#wktLiteral