メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.782360855042 35.4440897591685, 136.780163606735 35.4442222549025, 136.780160777757 35.444193091033, 136.78018281425 35.4441916116878, 136.780144466058 35.4438432889278, 136.782046973677 35.4437385901141, 136.782045022316 35.4435247481367, 136.782321466472 35.4435242484465, 136.78231183637 35.4437214717002, 136.782360855042 35.4440897591685)) ^^http://www.opengis.net/ont/geosparql#wktLiteral