メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.602452122779 35.4239717341076, 139.602651212072 35.4239238435193, 139.603189860367 35.4238289648565, 139.603268563068 35.4241417070914, 139.60342344541 35.4247552506821, 139.603429856873 35.4247776204672, 139.603813251605 35.4252609724391, 139.603214920102 35.4255127746625, 139.602739468836 35.425671327917, 139.602411975285 35.4250063987387, 139.601976477453 35.4241257774339, 139.601502355966 35.4231088197033, 139.602009652096 35.4229877253301, 139.602452122779 35.4239717341076)) ^^http://www.opengis.net/ont/geosparql#wktLiteral