メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.157790317667 35.0786684306847, 137.156592549842 35.0787073148926, 137.156485635677 35.078710964278, 137.156595679753 35.0782146115738, 137.156660755855 35.0778014996892, 137.156702900298 35.0772879577209, 137.156840958458 35.0763668701576, 137.156934082381 35.0758541785767, 137.156967861391 35.0758624920246, 137.157354064618 35.0759421877629, 137.157682052798 35.0759523648654, 137.157744640822 35.0776423857114, 137.159005421157 35.0776158217679, 137.15905929326 35.0786291186718, 137.157790317667 35.0786684306847)) ^^http://www.opengis.net/ont/geosparql#wktLiteral