メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.89273385296 37.0546923411127, 140.891716858679 37.0545809056574, 140.891769680295 37.0542801871191, 140.891276598591 37.0541990556025, 140.890841649495 37.0541359189661, 140.890848005048 37.0534869359757, 140.891521006946 37.0535016970372, 140.892943492789 37.0536055703517, 140.892789860431 37.0543682936261, 140.892785755628 37.0543888859618, 140.89273385296 37.0546923411127)) ^^http://www.opengis.net/ont/geosparql#wktLiteral