メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.222572472304 36.6872215166103, 137.222619309244 36.6874074348393, 137.222639731918 36.6875478825352, 137.222653386026 36.6876417275933, 137.222664156995 36.6877706338061, 137.222086354547 36.6877844921021, 137.222083633387 36.687878766562, 137.221816439197 36.6878858610377, 137.22181636641 36.6877866602029, 137.221456311055 36.6877707057037, 137.221517340182 36.6875745989035, 137.22161543324 36.6871819024654, 137.221822218305 36.6862809704574, 137.222561441303 36.6863480025415, 137.222538292838 36.6864603102877, 137.22250807213 36.6866255662498, 137.222501129722 36.6868929680947, 137.222508350421 36.6869277451402, 137.222554866134 36.6871516125475, 137.222572472304 36.6872215166103)) ^^http://www.opengis.net/ont/geosparql#wktLiteral