メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.085144763021 35.139562089539, 136.084894348283 35.1394302214971, 136.084336212999 35.1391698279649, 136.085048780363 35.1382520855409, 136.08587671617 35.1387063660968, 136.085144763021 35.139562089539)) ^^http://www.opengis.net/ont/geosparql#wktLiteral