メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.169387197769 34.9193330290561, 137.169355635113 34.9197453317603, 137.167995956694 34.919546539183, 137.168149284156 34.9191824889303, 137.168311621521 34.9187999148626, 137.168338713005 34.91880282654, 137.169245130728 34.9189001595249, 137.169432276415 34.9189243198746, 137.169387197769 34.9193330290561)) ^^http://www.opengis.net/ont/geosparql#wktLiteral