メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.748109707203 34.6447545872668, 135.747105276809 34.6447516573221, 135.746429764711 34.6447632092625, 135.746394552355 34.6446553742741, 135.746246064849 34.6441163965034, 135.746957357422 34.6440298390809, 135.74798892871 34.64389491964, 135.74800700767 34.6440542748023, 135.74803959135 34.6443212818056, 135.748109707203 34.6447545872668)) ^^http://www.opengis.net/ont/geosparql#wktLiteral