メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.17494767909 35.045053812046, 137.175041838223 35.0452331862335, 137.175128686811 35.0452937484727, 137.175380033764 35.0453666962163, 137.17543425253 35.0454072592249, 137.175164503773 35.0459595032807, 137.174723471454 35.0462290588146, 137.174056855661 35.0455167874611, 137.173839914919 35.0452737519062, 137.174451087055 35.0451597656136, 137.17494767909 35.045053812046)) ^^http://www.opengis.net/ont/geosparql#wktLiteral