メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.61124880166 35.3069397244242, 136.611163565643 35.3069488413881, 136.610788687817 35.3049865386573, 136.6105483384 35.3036414363244, 136.610497841465 35.3032060900529, 136.611245321755 35.3030637338133, 136.613257377041 35.3027173435847, 136.613575136715 35.3045667302755, 136.613162024693 35.304625693154, 136.613556248684 35.3066450543322, 136.61124880166 35.3069397244242)) ^^http://www.opengis.net/ont/geosparql#wktLiteral