メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.788829870674 34.7842129756954, 135.7891268402 34.784227434897, 135.789686719346 34.7842734771529, 135.790069096922 34.7842966736174, 135.790369694133 34.7842521145734, 135.790306699213 34.7852708618593, 135.789192656668 34.7851916088694, 135.788656008976 34.78520589349, 135.787898552625 34.785240639633, 135.7879368622 34.7842145262346, 135.788829870674 34.7842129756954)) ^^http://www.opengis.net/ont/geosparql#wktLiteral