メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.998463366078 34.8908579617979, 136.998504739249 34.89100317237, 136.998284212039 34.890936522024, 136.997374970507 34.8906629024713, 136.996886487594 34.8905102312649, 136.995618791068 34.8900891105794, 136.995053093838 34.8898927276528, 136.997403964128 34.8889856808861, 136.997964796995 34.888743276973, 136.998216390662 34.8898299216764, 136.998360025508 34.8904504582082, 136.998463366078 34.8908579617979)) ^^http://www.opengis.net/ont/geosparql#wktLiteral