メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.107520049844 38.92281030327, 141.106739231438 38.9225762146514, 141.106643888046 38.9225470176379, 141.106886796035 38.9218118148673, 141.107089066434 38.9212693380319, 141.109184214234 38.9217006350388, 141.110252905451 38.9219340245062, 141.110120348526 38.9223034859136, 141.109925253042 38.9224790555055, 141.109659156396 38.9226533151897, 141.109500126755 38.9227259719067, 141.109211549534 38.9228366584024, 141.108817363619 38.9229433001957, 141.108543314452 38.9229785732679, 141.108309899858 38.9229791223142, 141.108113435644 38.9229536136514, 141.107520049844 38.92281030327)) ^^http://www.opengis.net/ont/geosparql#wktLiteral