メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.171040085697 34.2391432654473, 135.170771289392 34.2394075554377, 135.170723810834 34.2394668232904, 135.170714645105 34.2395539609482, 135.170432711093 34.2393589252422, 135.169772999149 34.2389184802283, 135.16946626609 34.2387189108617, 135.170501170913 34.2387425185717, 135.17056086448 34.2387434847655, 135.171058252147 34.238751630126, 135.171040085697 34.2391432654473)) ^^http://www.opengis.net/ont/geosparql#wktLiteral