メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.920258202484 35.0858362200344, 136.920163739892 35.0861575287895, 136.920023222859 35.0865956524882, 136.920017965203 35.0866494475702, 136.919888449626 35.0870964665304, 136.919132468298 35.087050913581, 136.918281243436 35.0869825545915, 136.918242204985 35.0869795162577, 136.918344199464 35.0864924417551, 136.918457218097 35.0860275723062, 136.918527055344 35.0857064974402, 136.918556479509 35.085542673743, 136.918591432217 35.0853923129565, 136.91866943424 35.0850622398562, 136.918752798163 35.084700766877, 136.920552370648 35.0848254815612, 136.920352656123 35.0855106156101, 136.920258202484 35.0858362200344)) ^^http://www.opengis.net/ont/geosparql#wktLiteral