メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.696094199068 35.4458933347177, 136.69609194701 35.4464550203843, 136.69609184566 35.4464576600646, 136.695008497648 35.4464399051689, 136.694241819008 35.4464159180398, 136.693668392686 35.4464105702186, 136.693679039111 35.4453006047286, 136.693679178966 35.4452914159374, 136.69427747742 35.4453099939333, 136.696098533064 35.4453285952153, 136.696094199068 35.4458933347177)) ^^http://www.opengis.net/ont/geosparql#wktLiteral