メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.888188221172 43.3331211105881, 141.88761054299 43.3331158513343, 141.88735491892 43.3331012631356, 141.887108972321 43.3330555494966, 141.886938861042 43.3329962198391, 141.886794983684 43.3329041986678, 141.886648923539 43.3327827732828, 141.886559850096 43.3326338179737, 141.886527596716 43.3324851118389, 141.886542570523 43.3323537844415, 141.886619132567 43.3322227220894, 141.886757236453 43.3320917822436, 141.885962727147 43.331923374318, 141.885826257008 43.3325727808178, 141.885262691191 43.3325847846881, 141.884091406853 43.3326208823047, 141.883895728253 43.3317890487306, 141.883673567098 43.3308846922172, 141.883641460051 43.3307252257187, 141.883647486116 43.330644578515, 141.883833269961 43.3307389168087, 141.884081048025 43.3308586282799, 141.884315196524 43.3309500233904, 141.884717790114 43.3310399814416, 141.885383832154 43.331172125014, 141.88819128139 43.3317715078421, 141.888188221172 43.3331211105881)) ^^http://www.opengis.net/ont/geosparql#wktLiteral