メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.385386377863 43.7245079303556, 142.385218497904 43.7244104888713, 142.384722559805 43.7241402880065, 142.383948080272 43.7237055283365, 142.383097352771 43.7232358483146, 142.38346677374 43.7225925378479, 142.3835022075 43.722535379448, 142.384119546885 43.7214422945124, 142.384530697146 43.7207637017646, 142.38709520147 43.7215371063392, 142.386657847315 43.722326281935, 142.386623694085 43.7223917206395, 142.386373117031 43.7227806922284, 142.386129043721 43.7232387638691, 142.385893735447 43.7236516615937, 142.385559724302 43.7242157579663, 142.385386377863 43.7245079303556)) ^^http://www.opengis.net/ont/geosparql#wktLiteral