メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.731206777077 35.8315698723874, 140.730916571629 35.8319836046526, 140.730644980348 35.8323611800828, 140.730350260131 35.8327509525305, 140.730078817851 35.8331422560517, 140.729742687213 35.8335871876881, 140.728161400639 35.8328667152907, 140.7285204215 35.8323958836845, 140.728823380399 35.8319923417336, 140.729656904805 35.830833747207, 140.729935029574 35.8304681124235, 140.731507654802 35.8311749130494, 140.731206777077 35.8315698723874)) ^^http://www.opengis.net/ont/geosparql#wktLiteral