メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.600505051826 43.3041686402515, 144.59997685112 43.3042949718062, 144.597493134157 43.304896008298, 144.597323987033 43.3042845739275, 144.59731788546 43.304241168459, 144.597310236054 43.3041875286793, 144.59706181377 43.3033227283426, 144.598462547901 43.3029652656998, 144.598581060807 43.3029372333697, 144.599959660992 43.3026105157167, 144.600121192618 43.3029640156436, 144.600505051826 43.3041686402515)) ^^http://www.opengis.net/ont/geosparql#wktLiteral