メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.00524065521 34.9859208732992, 137.006586961936 34.9860822374119, 137.006628456914 34.9860865180296, 137.006327260122 34.9870037677684, 137.006025362068 34.9869632957454, 137.005020148785 34.9868390692178, 137.003662958398 34.986663726606, 137.003557294576 34.9861105354278, 137.003487216569 34.9857077496813, 137.003932845416 34.9857519398449, 137.004266641861 34.9857895707176, 137.00524065521 34.9859208732992)) ^^http://www.opengis.net/ont/geosparql#wktLiteral