メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.885430111066 43.0193615568981, 142.885343455625 43.0194442523618, 142.885244223622 43.0195389722251, 142.884962263849 43.0198015948343, 142.884475540735 43.0202148692886, 142.884318231691 43.0201155201211, 142.883276276755 43.0194749507827, 142.883249805028 43.0194593521773, 142.883465957836 43.019258591344, 142.883466130661 43.0192586948145, 142.884146419253 43.0186823164162, 142.884226306457 43.0186173123237, 142.885214628253 43.0192300396966, 142.885287074214 43.0192750003529, 142.885328211018 43.0192998804301, 142.885430111066 43.0193615568981)) ^^http://www.opengis.net/ont/geosparql#wktLiteral