メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.916348564946 35.2074393769535, 136.916306318645 35.2078148654185, 136.916259652111 35.2082256991775, 136.914972950675 35.2081274453693, 136.915021270718 35.207718165746, 136.915066159533 35.2073359915824, 136.915109771402 35.2069646608735, 136.916394339414 35.2070675574687, 136.916348564946 35.2074393769535)) ^^http://www.opengis.net/ont/geosparql#wktLiteral