メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.747744618145 35.4128744537501, 136.749145565416 35.4129480448039, 136.749031232603 35.4132013774347, 136.748978085717 35.4133909085076, 136.748966320823 35.4134287893622, 136.748783767181 35.4134162954899, 136.748763332037 35.4134423158007, 136.748586498411 35.4134464610783, 136.748586730781 35.4134013925515, 136.747676690718 35.4133935374387, 136.747192221706 35.4133705633771, 136.747208330069 35.4131666440102, 136.747224442908 35.4128537153372, 136.747744618145 35.4128744537501)) ^^http://www.opengis.net/ont/geosparql#wktLiteral