メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.047114831252 35.1832380043741, 137.046651710465 35.1849966010314, 137.046517281555 35.1855005705767, 137.045603950443 35.1853384253492, 137.045330168218 35.1854298115846, 137.044190089666 35.1835845156141, 137.043795335126 35.1829455514744, 137.043928046631 35.1829045780525, 137.043940686513 35.1829750338203, 137.044045007092 35.1829652238331, 137.044009206883 35.1827787224494, 137.044233905843 35.1827764285112, 137.044654949191 35.1828113646705, 137.04525412458 35.1829236621492, 137.045700390731 35.1829931983571, 137.047114831252 35.1832380043741)) ^^http://www.opengis.net/ont/geosparql#wktLiteral