メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.63026748348 35.3592475155415, 136.630186878499 35.3592432139332, 136.630106188881 35.3592453912158, 136.629742336603 35.3592416616191, 136.629400186864 35.359244436463, 136.62939096617 35.3592155215611, 136.629164485507 35.3592109228277, 136.629166667794 35.3587127641861, 136.630037372141 35.3587000149431, 136.630289917089 35.3587015592757, 136.63028832914 35.35874021452, 136.63026748348 35.3592475155415)) ^^http://www.opengis.net/ont/geosparql#wktLiteral