メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.149763028548 34.6646999088177, 135.149752273573 34.6647157569338, 135.149412372391 34.6651011672155, 135.148451760473 34.6644968485423, 135.148424286841 34.6644767491293, 135.148494493934 34.6644041601988, 135.148634951964 34.6642634893444, 135.148824061647 34.6640774181501, 135.149042910051 34.663847059364, 135.149069739318 34.6638188487998, 135.149593553758 34.663274446396, 135.150238797075 34.6637073374958, 135.150499699052 34.6638881367486, 135.149983692858 34.6643941775087, 135.149929763365 34.6644576432404, 135.149763028548 34.6646999088177)) ^^http://www.opengis.net/ont/geosparql#wktLiteral