メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.790111427606 35.3910906232972, 136.789626012281 35.391084389768, 136.789619695538 35.3908700103424, 136.787614836561 35.3908350011661, 136.787655112899 35.3879907654594, 136.788150198285 35.3880025307174, 136.78967503121 35.3880335022274, 136.790139238987 35.3880465707616, 136.790148044985 35.3887727046098, 136.790138348956 35.3903653051372, 136.79013819287 35.3903897411356, 136.790111427606 35.3910906232972)) ^^http://www.opengis.net/ont/geosparql#wktLiteral