メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.167601044643 34.6659559064899, 135.167657661512 34.6664333053105, 135.167072484895 34.6664774635198, 135.166703662797 34.66650520574, 135.166644368617 34.6660323323852, 135.166587486548 34.6655278904625, 135.167549634886 34.6654536810389, 135.167601044643 34.6659559064899)) ^^http://www.opengis.net/ont/geosparql#wktLiteral