メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.429067202362 43.0507728638757, 141.429250480533 43.0512898395269, 141.427045059283 43.0516728582192, 141.426866248789 43.0511673043115, 141.426720150806 43.0507544710335, 141.427107075473 43.0505624358828, 141.427524079934 43.0503438201529, 141.427781025204 43.0502046532386, 141.428005421872 43.0501473268602, 141.428594607442 43.0499824801469, 141.428779519164 43.0499304252915, 141.428924522386 43.0503615343769, 141.429067202362 43.0507728638757)) ^^http://www.opengis.net/ont/geosparql#wktLiteral