メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.217281278978 36.690854410386, 137.217245002835 36.6912728419831, 137.217122913958 36.6912728940223, 137.217122941946 36.6913151361017, 137.217241173779 36.6913170575019, 137.217190293529 36.6919039751711, 137.216922508772 36.6918844467188, 137.216870890802 36.6918796814886, 137.216438311322 36.6918396619913, 137.21644495243 36.6910790045197, 137.216442501364 36.6905465322536, 137.217002331617 36.6905519279414, 137.217016207583 36.6904470891203, 137.217306690351 36.6904582300077, 137.217304395103 36.690489983309, 137.217281278978 36.690854410386)) ^^http://www.opengis.net/ont/geosparql#wktLiteral