メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.721230230215 35.3351827177867, 136.722369294212 35.3358932189712, 136.72293433479 35.336237915344, 136.722154847142 35.3369816997594, 136.721741131027 35.3367953765565, 136.721547373874 35.3367033187704, 136.721373999839 35.3366082378535, 136.72119908403 35.3365123757217, 136.720927626166 35.3362500925495, 136.720642554859 35.3359553632578, 136.720443207043 35.3356210901772, 136.720395641322 35.3355268959511, 136.720327757075 35.3353924841845, 136.720606775459 35.3352768233017, 136.720618303518 35.3351879889607, 136.720648952734 35.3351226071054, 136.720730260036 35.3350416366358, 136.720836486783 35.3349373072547, 136.721230230215 35.3351827177867)) ^^http://www.opengis.net/ont/geosparql#wktLiteral