メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.969614588617 38.5668070429894, 140.969345034681 38.5668660503193, 140.968557873672 38.5670060265505, 140.9685530557 38.5670068761888, 140.967970486478 38.5671426723731, 140.967023091128 38.5673244884862, 140.966821601009 38.5665961570889, 140.966666154074 38.5661216985843, 140.967667411145 38.5655437398067, 140.968839836792 38.5653173315169, 140.968930570864 38.5653001962471, 140.970679068148 38.5649709236124, 140.970680315418 38.5656221940173, 140.970681953979 38.5656413347648, 140.970688872321 38.5657198683448, 140.970690524919 38.5665826928136, 140.969614588617 38.5668070429894)) ^^http://www.opengis.net/ont/geosparql#wktLiteral