メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.375822253636 37.3549391701432, 140.375433312881 37.3550696486344, 140.375333290364 37.3551226271279, 140.375038206135 37.3552446475996, 140.375234440219 37.3555416759863, 140.373798367555 37.3559036443532, 140.373017437921 37.3548336277631, 140.374436998261 37.3542925076973, 140.374661353857 37.3546688197045, 140.375432567244 37.3543822712951, 140.375822253636 37.3549391701432)) ^^http://www.opengis.net/ont/geosparql#wktLiteral