メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.81813659889 35.7277820323966, 140.815043421505 35.7290645749367, 140.814993284898 35.7290325574989, 140.814554996899 35.7283140520229, 140.816206324812 35.7276289016235, 140.817229085301 35.7272015920433, 140.817473694029 35.7271347341333, 140.817728561961 35.7270947955848, 140.81801282445 35.7275627593081, 140.81813659889 35.7277820323966)) ^^http://www.opengis.net/ont/geosparql#wktLiteral