メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.785127193966 35.4172418865963, 136.7831057619 35.4172904046329, 136.780639107516 35.4173939959164, 136.78062923529 35.4169379622207, 136.782127300169 35.4168677164384, 136.783754794372 35.4168137043408, 136.784653401922 35.41678745196, 136.784652579677 35.4167063963107, 136.784895933324 35.4166997708366, 136.784929838093 35.4167793814765, 136.785127193966 35.4172418865963)) ^^http://www.opengis.net/ont/geosparql#wktLiteral